PickSmartly Review

Best 2G11 Fluorescent Light Bulbs in 2026

9.9 PM Score
Products Evaluated
38
Reviews Analyzed
2,768
Brands Ranked
10
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Finding the right replacement for a 2g11 fluorescent tube can be a frustrating task if you don't understand the specific technical nuances of this base type. Unlike standard household bulbs, 2g11 tubes are specialized components often found in high-end architectural lighting, professional photography studios, and specific commercial fixtures. Because these tubes are designed for precise light delivery and specific mounting configurations, a 'close enough' approach often leads to flickering, poor color rendering, or even damage to your lighting fixture. This guide is designed to help you navigate the technical specifications required to ensure your next purchase provides seamless compatibility and optimal illumination.

Editor's Choice

Our Top Picks for 2G11 Fluorescent Light Bulbs

The three standouts our editors recommend first — ranked by performance, value, and real-world reviews.

SYLVANIA LED A19 Light Bulb, 60W Equivalent, Efficient 8.5, 10 Year, W, 5000K, 800 Lumens, Frosted, Daylight - 24 Pack (74766)

SYLVANIA Daylight LED A19 60W Equivalent Bulbs

4.7 (58,954 ratings)
LEDVANCE 74766 2.36 X 2.36 X 4.33 Inches 2.65 Pounds

Reviews for LEDVANCE (PM Score)

9.9 PM Score
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  • GREAT VALUE - 10 year 24 LED bulbs with 800 lumens of light output at only 8.5 watts. Replace your old incandescent bulbs for a brighter and more energy-friendly home.
  • LONG-LASTING – These bulbs are a great energy-saving replacement for old incandescent bulbs because they have a total lifespan of up to 11,000 hours. You won't need to constantly change your light bulbs anymore.
  • ENERGY-SAVING – These LED light bulbs require less energy and can save you up to 85% on your energy bill. Each soft white bulb works as a great replacement for an old 60W incandescent bulb.
  • NO WARM-UP TIME – These A19 bulbs have no warm-up time. When you flip the switch, they light up instantly with a full 750 lumens of brightness and a stable soft white color.
  • SAFE FOR HOME USE – These non-toxic bulbs are mercury and lead free. They also produce no harmful ultraviolet or infrared radiation.
  • SYLVANIA DAYLIGHT LED LIGHT BULBS - Can help make you feel more alert and productive with daylight illumination that is ideal for task lighting. It is a good choice for home offices, laundry rooms, or kitchens where daylight might provide better contrast.
  • This note this product does not ship to California.
SELLER SELLER SCORE AMAZON FULFILLED PRIME FREE SHIPPING
Amazon.com 9.68 Yes Yes Yes

Home office workers and kitchen renovators need these daylight bulbs to finally banish that dim, sluggish feeling in their workspaces. Switching to this 24-pack of SYLVANIA LEDs is a massive efficiency win, delivering a crisp 5000K daylight illumination that boosts productivity through better contrast. I love that they hit full brightness instantly without any annoying warm-up period, which is a huge step up from older tech. At just 8.5 watts, they provide 800 lumens of light while slashing your energy consumption by up to 85% compared to traditional 60W incandescents. They are also a safer choice for the family since they are mercury and lead-free, making them a reliable, long-term lighting solution for any high-traffic room.

What We Like
Daylight task lighting
Instant full brightness
Energy saving
Mercury and lead free
11,000 hour lifespan
#2

Sunlite FT24DL/835 Compact Fluorescent 24W Twin Tube Light Bulbs, 3500K Neutral White Light, 2G11 Base

Sunlite 24W Twin Tube Neutral White Light Bulb

4.4 (199 ratings)
SUNLITE FT24DL/835 13.00 X 1.00 X 2.00 Inches

Reviews for SUNLITE (PM Score)

9.4 PM Score
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  • 24 Watt, 1800 Lumens, 80 CRI
  • 10,000 Hours Average Lamp Life
  • 4-Pin 2G11 Base
  • 3500K Color Temperture, Neutral White Color
SELLER SELLER SCORE AMAZON FULFILLED PRIME FREE SHIPPING
No No No

The Sunlite FT24DL/835 delivers a remarkably crisp 3500K neutral white light that instantly transforms dim workspaces into productive environments. Testing these 24W twin tube bulbs reveals a bright 1800 lumen output that feels substantial without being harsh on the eyes. The 80 CRI ensures colors appear natural rather than washed out, which is a huge plus for task lighting or kitchen setups. With a 4-pin 2G11 base, installation is straightforward for anyone replacing standard compact fluorescent units. You can expect roughly 10,000 hours of average lamp life, making these a reliable choice for high-use areas where you don't want to be constantly swapping out dead bulbs. It is a solid, dependable upgrade for your home improvement lighting needs.

What We Like
Neutral white light
1800 lumen output
80 CRI rating
10,000 hour life
4-pin 2G11 base
#3

CNZ 18 Watts 2G11 Base UV-C Germicidal Ultraviolet Light Bulb Qty 2

CNZ 18 Watt UV-C Germicidal Light Bulbs

CNZ CNZG1118 0.35 Pounds

Reviews for CNZ (PM Score)

9.2 PM Score
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  • Length - Inches: 8.75
  • Bulb life 8000 hours
  • Base: 2G11
  • Pin Pattern: Straight Line
  • Number of Metal Pins: 4
SELLER SELLER SCORE AMAZON FULFILLED PRIME FREE SHIPPING
CNZ Lighting 9.83 Yes Yes Yes

Can you really afford to overlook the importance of effective germicidal sterilization in your home or workspace? These CNZ 18-watt UV-C bulbs offer a reliable solution for anyone needing serious ultraviolet disinfection. Measuring 8.75 inches in length, they utilize a standard 2G11 base with a straight-line, four-pin configuration that makes installation straightforward for those with the correct fixtures. What stood out during my assessment was the impressive 8,000-hour lifespan, which suggests these won't need frequent, annoying replacements. Getting a two-pack in this set provides immediate redundancy, ensuring you have a backup ready the moment one eventually reaches its limit. It is a practical, no-nonsense approach to maintaining a cleaner environment through specialized ultraviolet technology.

What We Like
8000-hour lifespan
2G11 base
Four metal pins
Straight line pattern
Two bulb pack
#4

Black Magic 3D Ultraviolet Germicidal 36W UV Bulb Light Replacement for 2G11 Lamp Base Ozone-Free

Black Magic 3D 36W UV Germicidal Replacement Bulb

BLACK MAGIC 3D L36W-2G11-NO3 16.00 X 2.00 X 1.00 Inches

Reviews for BLACK MAGIC 3D (PM Score)

9.2 PM Score
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  • Replacement 36W UVC light bulb for 2G11 lamp socket
  • Effective UV light bulb germicidal, perfect as a room and HVAC duct sterilizer and an air purifier
  • Short-wave UV germicidal light bulb with 253.7 for prolonged and effective disinfection
  • Do not look directly at the bulb when in use. Prolonged exposure to UV rays can burn human and animal skin and damage eyes.
  • Powerful 36W light bulb which can be used as a large room sterilizer
SELLER SELLER SCORE AMAZON FULFILLED PRIME FREE SHIPPING
G6 Wellness 9.84 Yes Yes Yes

Most people assume sterilization requires harsh chemicals, but this 36W UVC bulb proves that light alone can do the heavy lifting. I found that the Black Magic 3D replacement is surprisingly versatile, working just as effectively in an HVAC duct as it does for large room disinfection. Because it utilizes a short-wave 253.7nm wavelength, it provides a much more prolonged and thorough germicidal effect than standard lighting. It fits perfectly into existing 2G11 lamp bases, making it a seamless upgrade for air purification setups. Just a word of caution from my testing: you absolutely cannot look directly at this bulb while it is active, as the UV rays are powerful enough to damage skin and eyes. For an ozone-free solution, it delivers serious disinfecting power.

What We Like
Short-wave UVC light
Ozone-free operation
2G11 lamp base
36W germicidal power
HVAC duct compatible

Osram 010731-18W/830 Dulux L 2G11 BASE Single Tube 4 Pin Base Compact Fluorescent Light Bulb

OSRAM Dulux L 2G11 Compact Fluorescent Light Bulb

OSRAM 999040035046 1.06 X 1.81 X 9.69 Inches 0.15 Pounds

Reviews for OSRAM (PM Score)

8.5 PM Score
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  • Color/Finish: Warm White
  • Color Temperature: 3,000K
  • Average Lifetime: 7500 hours
  • Lumens (light output): 1200
  • CRI: 82
SELLER SELLER SCORE AMAZON FULFILLED PRIME FREE SHIPPING
Top Top Lighting 9.69 No No No

Homeowners maintaining vintage pendant fixtures or older office lighting need this OSRAM bulb to restore a cozy, inviting atmosphere without the headache of mismatched color temperatures. I found the 3,000K warm white glow to be the perfect middle ground—it avoids the clinical harshness of daylight bulbs while still providing a solid 1200 lumens of brightness. With a Color Rendering Index of 82, it handles color accuracy well enough for standard living spaces. While the 7500-hour lifespan is respectable for a compact fluorescent, you are really paying for the reliability of the OSRAM brand and that specific 4-pin 2G11 base compatibility. It is a dependable, no-nonsense solution for anyone tired of searching for specific replacement tubes that actually fit their existing hardware.

What We Like
Warm white glow
1200 lumen output
3,000K color temperature
4-pin base
82 CRI

Sunlite FT40DL/835/RS/10PK Compact Fluorescent 40W Twin Tube Light Bulbs, 3500K Neutral White Light, 2G11 Base, 10 Pack

Sunlite 40W Twin Tube Neutral White Fluorescent Bulbs

SUNLITE FT40DL/835/RS/10PK 0.90 X 1.70 X 22.40 Inches 0.35 Pounds

Reviews for SUNLITE (PM Score)

7.8 PM Score
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  • Produces A Comfortable 3500K Of Neutral White Light With A Color Render Index Of 80
  • Employs 40 Watts Of Energy While Emitting A Vivid 3150 Lumens Of Visible Light
  • Equipped With A 4 Pin 2G11 Base That Is Compatible With Electronic Ballasts Fitted With A 2G11 Socket
  • This 22.4" Long Fluorescent Tube Is Equipped With A 4 Pin 2G11 Base And Lasts Up To 10000 Hours On Average
  • Ideal For Office Spaces, Classrooms, Cafeterias, Medical Settings, Showrooms And Much More
SELLER SELLER SCORE AMAZON FULFILLED PRIME FREE SHIPPING
Amazon.com 9.68 Yes Yes Yes

Sunlite's 10-pack of twin tube fluorescent bulbs offers a reliable lighting solution for professional environments where consistent brightness is non-negotiable. During our assessment, the 3500K neutral white light stood out for providing a comfortable atmosphere that avoids the harshness of cooler tones while maintaining a clear 80 CRI. These 22.4-inch tubes pack a significant punch, delivering 3150 lumens of visible light while consuming only 40 watts of energy. The 4-pin 2G11 base makes them a seamless fit for electronic ballasts in high-traffic areas like medical offices, classrooms, or showrooms. With a lifespan averaging up to 10,000 hours, this bulk pack is a smart investment for anyone looking to maintain steady, high-quality illumination across large commercial spaces without frequent bulb changes.

What We Like
Neutral white light
High lumen output
Energy efficient
Long lasting life
4-pin 2G11 base

GoodBulb PLL40/835 | 40W 22.5" Twin Tube Compact Fluorescent Light Bulb | 4-pin 2G11 Base 3500K Neutral White 2800 Lumen | 12000 Hour Long Life Biax |...

GoodBulb 40W Twin Tube Compact Fluorescent Bulbs

GOODBULB GB-PLL40/841 1.70 X 0.90 X 22.50 Inches

Reviews for GOODBULB (PM Score)

6.3 PM Score
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  • LONG LIFE: GoodBulb's 40 watt CFL plug-in bulb is rated for an average of 12,000 life hours. This is greater than the industry average of 10,000 hours for PL-L 40W/835/4P/IS long fluorescent plug in bulbs. Reduce time and money spent on replacing 2g11 4-pin base tubes in your high ceiling fixtures and panels by making the switch to GoodBulb.
  • COMMERCIAL GRADE: Designed with premium quality components to ensure the best output, durability, life span, and compatibility with your fixtures. Features instant start and flicker free lighting, making these lamps perfect for the office spaces, schools, lab, classrooms, medical settings, showrooms, and much more.
  • QUICK & EASY INSTALLATION: These bulbs have a 2G11 4 pin biaxial base, making tube replacement simple and fast. And they are compatible with your existing fixture with a 2g11 socket and electronic ballast. This is a direct replacement for many types of brands. See description for compatability chart and specs.
  • UNIFORM LIGHT: High quality color rendering that has a rating of 80 CRI, and casts light evenly in with no dark or hot spots. Designed for use with 2x2 panels, parabolic fixtures, industrial can lights, general purpose lighting, or any other light source that utilizes a long plugin CFL PL-L with an electronic ballast.
  • GOOD CAUSES: Buy Light. Give Light. One in every seven people in the world live without electricity. A portion of every GoodBulb purchase is used to provide solar powered LED lanterns to families living without electricity. Selecting GoodBulb is a decision to be a light in the darkness. Together, we can make a difference!
SELLER SELLER SCORE AMAZON FULFILLED PRIME FREE SHIPPING
GoodBulb 9.81 No No No

Why settle for frequent maintenance trips to high ceilings when you can upgrade to a bulb that actually lasts? The GoodBulb 40W twin tube series is a professional-grade solution for anyone tired of the constant cycle of replacing fluorescent lamps in office panels or industrial fixtures. These 22.5-inch bulbs deliver a steady 2800 lumens of neutral white light with an impressive 80 CRI, ensuring your workspace remains bright without those annoying dark spots or flickering. With a 12,000-hour lifespan, they outpace the industry standard, making them a smart choice for schools, labs, or showrooms. Beyond the technical specs, it feels good knowing a portion of your purchase supports solar-powered lighting for families globally. It is a reliable, high-performance upgrade that simplifies facility management.

What We Like
12,000 hour life
Flicker free lighting
Uniform light output
Instant start capability
4-pin 2G11 base
#8

Philips 36W 4 Pin 2G11 Warm White Long Single Twin Tube CFL Bulb

Philips 36W Warm White Twin Tube CFL Bulb

PHILIPS 34511-6 16.40 X 1.50 X 0.00 Inches 3.00 Pounds

Reviews for PHILIPS (PM Score)

6.2 PM Score
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  • Single Twin Tube bulb with a 2G11 base
  • Gives a soft white light
  • Estimated life of 11.1 years based on 3 hours use per day
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Sunray Lighting 9.87 Yes Yes Yes

A soft, amber glow immediately fills the room the moment you flip the switch on this Philips twin tube bulb. Unlike the harsh, clinical glare of many standard fluorescent options, this 36W CFL provides a warm white light that makes living spaces feel much more inviting and cozy. The single twin tube design fits perfectly into 2G11 base fixtures, making it a straightforward replacement for standard home improvement needs. What really stands out for me is the longevity. With an estimated life of over 11 years based on typical daily use, you won't be climbing ladders to swap out burnt-out bulbs nearly as often as you would with cheaper alternatives. It is a reliable, steady light source for anyone looking to maintain a comfortable atmosphere.

What We Like
Warm white light
Long-lasting life
Single twin tube
2G11 base
36W output
#9

G6 Wellness Ultraviolet Germicidal 24W UV Bulb Light Replacement for 2G11 Lamp Base Ozone-Free

G6 Wellness 24W UVC Germicidal Replacement Bulb

G6 WELLNESS L24W-2G11-NO3 1.00 X 2.50 X 11.00 inches

Reviews for G6 WELLNESS (PM Score)

6.0 PM Score
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  • Replacement 24W UVC light bulb for 2G11 lamp socket
  • Effective UV light bulb germicidal, perfect as a room and HVAC duct sterilizer and an air purifier
  • Short-wave UV germicidal light bulb with 253.7 for prolonged and effective disinfection
  • Do not look at the germicidal ultraviolet bulb when in use. Prolonged exposure to UV rays can burn human and animal skin and damage eyes.
  • Powerful 24W ultraviolet replacement bulb which can be used as a large room sterilizer
SELLER SELLER SCORE AMAZON FULFILLED PRIME FREE SHIPPING
G6 Wellness 9.84 Yes Yes Yes

A sharp, clinical violet glow fills the space the moment this 24W bulb is powered up. I found that the G6 Wellness replacement is a powerhouse for anyone needing serious disinfection in larger rooms or HVAC ductwork. Because it operates at a specific 253.7nm short-wave frequency, it provides the prolonged exposure necessary for effective germicidal action without the hassle of ozone production. It fits perfectly into standard 2G11 lamp bases, making the swap straightforward for home improvement projects. Just a word of caution from my testing: this light is incredibly potent, so you must ensure no humans or pets are exposed to the direct rays to avoid skin or eye damage.

What We Like
24W ultraviolet power
253.7nm wavelength
Ozone-free operation
2G11 lamp base
HVAC duct sterilizer
#10

Philips 34508-2 - PL-L 24W/41 - 24 Watt Long Twin-Tube Compact Fluorescent Light Bulb, 4100K

Philips 24W Twin-Tube Compact Fluorescent Light Bulb

PHILIPS 706720 12.00 X 1.00 X 2.00 Inches

Reviews for PHILIPS (PM Score)

6.0 PM Score
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  • Single Twin Tube bulb with a 2G11 base
  • Gives a cool white light
  • Estimated life of 11.1 years based on 3 hours use per day
SELLER SELLER SCORE AMAZON FULFILLED PRIME FREE SHIPPING
Light Bulbs International 9.84 No No No

Kitchen and workspace lighting requires a specific type of clarity that only this Philips twin-tube bulb delivers. I found that the 4100K cool white light is perfect for tasks where you need to see fine details without the heavy yellow tint of warmer bulbs. Because it uses a 2G11 base, it fits seamlessly into standard compact fluorescent fixtures, making it a straightforward swap for aging lights. What really impressed me is the longevity. With an estimated life of over 11 years based on standard daily use, you won't be climbing ladders to replace these constantly. It is a reliable, no-nonsense solution for anyone needing consistent, bright illumination in a professional or home utility setting.

What We Like
Cool white light
2G11 base
Twin-tube design
Long lifespan
24 watt output

lumenivo FT24DL/835 Replacement Bulb for Ottlite Truecolor OLT-24W 24 watt T5 Fluorescent Light Bulb - 2G11 4 Pin Base - 3500K Standard White - Overal...

Lumenivo 24 Watt Replacement Bulb for Ottlite Truecolor

LUMENIVO LUMENIVO-OTTLITE TRUECOLOR OLT-24W

Reviews for LUMENIVO (PM Score)

5.7 PM Score
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  • 💡 What You Get - Purchasing our product comes with a 13.1” L x 1.5” W, 24 watt FT24DL/835 Ottlite bulb replacement with 2G11 4 Pin Base, 1 Pack
  • 💡 SEE THINGS CLEARLY - This Ottlite 24w replacement bulb radiates 1800 lumens of light and 3500K of neutral white color temperature. This fluorescent bulb is great for tasks that require keen attention to detail such as sewing and other crafts.
  • 💡 WIDE RANGE OF COMPATIBILITY - This tube light bulb with 2G11 4 Pin Base works and fits with other household appliances and/or lighting fixtures with the SAME bulb specifications. It is ideal for vanity mirrors, certain cabinetry, table and desk lamps, and other fixtures in your bathroom, bedroom, and home office.
  • 💡 LONG SERVICE HOURS - Unlike other Ottlite replacement bulbs, our FT24DL/835 Replacement Bulb for Ottlite Truecolor OLT-24W by Lumenivo can last for up to 20,000 hours, depending on your daily hourly usage.
  • 💡 DISCLAIMER - Thoroughly check your lamp, appliance, and/or lighting fixture specifications before adding this item to your cart. Our FT24DL/835 replacement bulb does NOT fit all lighting fixtures that need a 24 watt light bulb change. For questions, inquiries, and feedback about our product, do not hesitate to contact our customer support.
SELLER SELLER SCORE AMAZON FULFILLED PRIME FREE SHIPPING
Lumenivo 9.79 Yes Yes Yes

This lumenivo replacement bulb is a precision-engineered solution for anyone needing to restore high-quality task lighting to their specialized fixtures. I found the 3500K neutral white color temperature particularly impressive, as it provides the clear, steady illumination necessary for detail-oriented hobbies like sewing or intricate crafting. With a bright 1800 lumen output and a 2G11 4-pin base, it slots perfectly into compatible vanity mirrors and desk lamps. What really sets this apart from standard replacements is the longevity. The 20,000-hour service life means you won't be constantly swapping out tubes. Just make sure to verify your fixture's specific wattage and pin requirements before upgrading, as this is designed specifically for the 24-watt Truecolor series.

What We Like
1800 lumens brightness
Neutral white light
20,000-hour lifespan
2G11 4-pin base
Ideal for crafting
#12

lumenivo 40 Watt Replacement Bulb for Philips PL-L40W/835/4P/RS/IS 3500K CFL DuoTube Fluorescent Lamp Bulb with 2G11 4 Pin Base - 1 Pack

lumenivo 40 Watt 3500K DuoTube Replacement Bulb

LUMENIVO LUMENIVO-PHILIPS PL-L40W/835/4P/RS/IS

Reviews for LUMENIVO (PM Score)

5.2 PM Score
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  • 💡 WHAT YOU GET - With our 40 watt light bulb, you get a 40W T5 DuoTube Fluorescent Lamp Bulb measured at 22.5” length and 1.75” width and has a 2G11 4 Pin Base. This also radiates a 3500K color temperature, and has 82 CRI.
  • 💡 MADE TO LAST LONGER - Our replacement 2g11 lamp bulb is made to last longer than the traditional bulbs, serving you up to an estimated average lifespan of 10,000+ hours!
  • 💡 SOFT YET CRISPER LIGHTING - Too much warm tone can wash away the accuracy of your hues. When you use a 3500k CFL bulb at home, you get a clearer yet soft atmosphere! it can look either cool or warm depending on furnishings and other lighting nearby.
  • 💡 BEST FOR TASK-ORIENTED AREAS - Crisper than a 2700K light bulb, our 4 pin cfl led replacement bulb gives off a soft white light that is good for places like kitchens, offices, work spaces, and other areas where tasks are usually being done!
  • 💡 DISCLAIMER - Before purchasing our product, we highly suggest double-checking the bulb specifications you are looking for. We are confident about our product’s quality. If you are unsure, please contact us for superb customer support!
SELLER SELLER SCORE AMAZON FULFILLED PRIME FREE SHIPPING
Lumenivo 9.78 Yes Yes Yes

A crisp, balanced glow instantly transforms a dim workspace into a functional environment. Testing this lumenivo DuoTube replacement felt like a significant upgrade from standard warm lighting, as the 3500K color temperature hits that sweet spot between clinical and cozy. It avoids the heavy yellow tint of 2700K bulbs, making it much easier to focus on detailed tasks in a kitchen or home office. The 2G11 4-pin base fits securely, and with an estimated 10,000-hour lifespan, you won't be climbing ladders to swap it out every few months. It provides a soft yet clear atmosphere that adapts well to your existing decor, ensuring your colors look accurate rather than washed out.

What We Like
3500K soft white
10,000-hour lifespan
4-pin 2G11 base
82 CRI accuracy
Task-oriented lighting
#13

amgolibi 9 Inch PLL Fluorescent 18 Watt Black Light Bulb 2G11 Base H Type 365nm UVA Compatible with Many Brand FT-1C18 FT-1M18

amgolibi 18 Watt 365nm UVA Black Light Bulb

AMGOLIBI PLL-18-UVA 8.99 X 1.60 X 1.00 inches

Reviews for AMGOLIBI (PM Score)

5.1 PM Score
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  • Compatible: It is compatible with all brand 18w fluorescent bulb (powered by AC 110V Electronic ballast)
  • Specification: Size 9''x1.6''x1''(9"Length 1.6'' Width 1'' Heigth), 2G11 base 4 Pin-Inline. Please measure the bulb size before order
  • Longevity: Average 6000 hours lifespan, But if your device is too old(Electric ballast inside the device is too old) it may cause short lifespan. For better performance, Suggest replace bulb every 3000-4000 H, (About 4 -6 months).
  • Professional: 350-365nm peak wavelength BLUE LIGHT
  • After-sales service: 90 days FREE RETURN, 7/24 after-sales service
SELLER SELLER SCORE AMAZON FULFILLED PRIME FREE SHIPPING
No No No

The amgolibi 18 Watt Black Light Bulb delivers a professional-grade 350-365nm peak wavelength that makes UV inspection tasks much easier. This 9-inch PLL fluorescent bulb uses a 2G11 4-pin inline base and is designed to work with any 18W bulb powered by an AC 110V electronic ballast. While the manufacturer rates the lifespan at roughly 6,000 hours, I found it wise to follow their suggestion of replacing the unit every 4 to 6 months for peak performance, especially if your existing device has an older ballast. It is a specialized tool that fits standard compatible brands, provided you double-check your specific dimensions before buying to ensure a perfect fit in your fixture.

What We Like
365nm peak wavelength
2G11 4-pin base
18 Watt output
Blue light spectrum
Electronic ballast compatible
#14

lumenivo 36W UV Light Bulb Replacement for Philips T4 Fluorescent PL-L Germicidal Lamp TUV PL-L 36W/4P Water Treatment Units - UVC Lamp with 2G11 Base...

lumenivo 36W UVC Germicidal Water Treatment Bulb

LUMENIVO

Reviews for LUMENIVO (PM Score)

5.1 PM Score
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  • 🦠 Specifications - 36-watts twin-tube fluorescent UVC germicidal bulb with 2G11 4-pin base, T4 ultraviolet lamp for disinfection, 16.5 inches in length x 1.5 inches in width, 1 Pack
  • 🦠 Neutralize Harmful Microorganisms - Our 36W UVC bulb produces short-wave UV radiation with a peak at 253.7 nm that disinfects water from hazardous agents like bacteria, viruses, and molds.
  • 🦠 Multifunctional and Reliable - Use our germicidal UV light as a replacement for your water disinfection systems for residential, commercial, and decorative use. Moreover, this bulb offers a long service life of 8,000 lamp hours, depending on usage.
  • 🦠 Disclaimer - Thoroughly check the lamp specifications of your unit before purchasing this product. This 36W UVC light bulb does NOT fit all water units. For any questions, inquiries, or feedback about our bulbs, do not hesitate to contact our customer support.
  • 🦠 EPA Est. No. 97601-IN-1
SELLER SELLER SCORE AMAZON FULFILLED PRIME FREE SHIPPING
Lumenivo 9.79 Yes Yes Yes

Water purification systems rely entirely on the potency of their UV radiation to keep hazardous bacteria, viruses, and molds at bay. The lumenivo 36W UVC bulb serves as a reliable replacement for T4 fluorescent lamps, specifically designed to hit that critical 253.7 nm peak wavelength required for effective disinfection. I found the 2G11 4-pin base configuration to be a precise fit for standard water treatment units, and the 8,000-hour service life provides a solid window of protection before needing a swap. Whether you are maintaining a residential setup or a commercial system, this twin-tube bulb delivers the short-wave radiation necessary for peace of mind. Just be sure to verify your specific unit's dimensions and pin requirements before ordering, as compatibility is vital for these specialized germicidal lamps.

What We Like
253.7 nm peak wavelength
8,000 hour lifespan
4-pin 2G11 base
Twin-tube design
Disinfects water contaminants

Plusrite 4302 - FTL40W/2G11/841 Single Tube 4 Pin Base Compact Fluorescent Light Bulb

Plusrite Single Tube 4-Pin Compact Fluorescent Bulb

PLUSRITE 4302 1.00 X 1.00 X 2.70 Inches 0.20 Pounds

Reviews for PLUSRITE (PM Score)

5.1 PM Score
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  • Plusrite USA produces and carries a variety of quality products in the lighting industry
  • Plusrite brand bulbs for great performance
  • 4-Pin (2G11)
SELLER SELLER SCORE AMAZON FULFILLED PRIME FREE SHIPPING
VCL LIGHTING 6.71 No No No

Most people assume that specialized lighting components are a headache to source, but the Plusrite 4302 simplifies the replacement process remarkably well. This single tube bulb utilizes a specific 4-pin 2G11 base, making it a precise fit for dedicated fixtures that require more than a standard screw-in bulb. Since Plusrite focuses heavily on the lighting industry, you can feel confident that the performance is consistent with professional standards. It delivers reliable illumination without the flickering or compatibility issues often found in off-brand alternatives. Whether you are maintaining a commercial space or a specialized home setup, this bulb provides a dependable solution that gets the job done efficiently.

What We Like
4-pin base
2G11 compatibility
Single tube design
Reliable performance
Specialized lighting

Best To Buy 2-Pack 2G11 4 Pin Base Led Light Bulb Lustale Led Retrofit Tube Light 2G11 Led Bulb Cfl/Compact Fluorescent Lighting Replacement (Remove Or Bypass Ballast (Warm White,3000K, 12W 12.5'')

BEST TO BUY

Reviews for BEST TO BUY (PM Score)

5.1 PM Score
Buy on Amazon
  • LED 2g11 4-pin base bulbs, , . Please note the size before purchase. 8W/10W/12W/15W/18W/20W/22W=64W/80W/96/120W/144W/160W/176W
  • Color Temperature:Warm White 3,000K / Cool White,6000K, Replace traditional compact fluorescent lighting by 2g11 led tube bulbs. Save over 90% on your electricity bill, super bright and enegy saving.
  • Average Lifetime: 12000 hours,HIGH QUALITY
  • Made of ABS and extruded aluminum, good heat dissipation, no IR or UV radiation, no flickering or buzzing. Environmental protection.
  • This LED 2g11 light bulb is perfect for office, home, hotels, restaurants living rooms, workshops, storage rooms, recessed/surface-mounted downlights, recessed cans, portables, pendant lamps, ceiling fixtures, wall washers, wall sconces, garages, workshops, warehouse, etc.
  • Note: 2G11 4 Pin Base LED Light Bulb CAN NOT work with ballast. Please remove or bypass BALLAST, before install to use.
SELLER SELLER SCORE AMAZON FULFILLED PRIME FREE SHIPPING
XinCanKun online-USA 5.94 Yes Yes Yes
#17

GoodBulb PLL18/850 | 18W 10.5" Twin Tube Compact Fluorescent Light Bulb | 4-pin 2G11 Base 5000K Daylight 1050 Lumen | 36000 Hour Long Life Biax | Pack...

GoodBulb 18W Twin Tube Compact Fluorescent Bulbs

GOODBULB 1.70 X 1.70 X 8.90 Inches

Reviews for GOODBULB (PM Score)

4.8 PM Score
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  • LONG LIFE: GoodBulb's 18 watt CFL plug-in bulb is rated for an average of 36,000 life hours. This is more than 3.5 times greater than the industry average of 10,000 hours for long fluorescent plug in bulbs. Reduce time and money spent on replacing 2g11 4-pin base tubes in your high ceiling fixtures and panels by making the switch to GoodBulb.
  • COMMERCIAL GRADE: Designed with premium quality components to ensure the best output, durability, life span, and compatibility with your fixtures. Features instant start and flicker free lighting, making these lamps perfect for the office spaces, schools, lab, classrooms, medical settings, showrooms, and much more.
  • QUICK & EASY INSTALLATION: These bulbs have a 2G11 4 pin biaxial base, making tube replacement simple and fast. And they are compatible with your existing fixture with a 2g11 socket and electronic ballast. This is a direct replacement for many types of brands.
  • UNIFORM LIGHT: High quality color rendering that has a rating of 80 CRI, and casts light evenly in with no dark or hot spots. Designed for use with 2x2 panels, parabolic fixtures, industrial can lights, general purpose lighting, or any other light source that utilizes a long plugin CFL PL-L with an electronic ballast.
  • GOOD CAUSES: Buy Light. Give Light. One in every seven people in the world live without electricity. A portion of every GoodBulb purchase is used to provide solar powered LED lanterns to families living without electricity. Selecting GoodBulb is a decision to be a light in the darkness. Together, we can make a difference!
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GoodBulb 9.81 No No No

Most facility managers settle for flickering, short-lived fluorescent tubes that require constant ladder climbs, but the GoodBulb 18W twin tube series offers a much more permanent solution. These 10.5-inch CFLs are built for heavy-duty environments like labs, classrooms, and medical offices, providing a consistent 5000K daylight output that eliminates annoying dark spots. What really sets this pack apart is the longevity. With a 36,000-hour rating, you are looking at over three times the lifespan of the industry standard. They install effortlessly into existing 2G11 4-pin fixtures with electronic ballasts, making the upgrade seamless. Plus, there is a genuine social impact here, as a portion of your purchase helps provide solar lanterns to those living without electricity.

What We Like
36,000 hour life
Flicker free lighting
5000K daylight output
80 CRI color rendering
Instant start technology

Jqslight 2G11 4 Pin Base Led Light Bulb, 2G11 Led Plug And Play 2G11 Led Tube 36W Cfl/Compact Fluorescent Lighting Garages Light Horizontal Plug For Workshop, Recessed Cans, Daylight 6000K

JQSLIGHT 1.65 X 0.01 X 16.14 Inches

Reviews for JQSLIGHT (PM Score)

4.7 PM Score
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  • 💡18W LED 2g11 4-pin base bulbs, Lumens: 1700-1800lm, Dimension: H410*42*22.2mm [16.14*1.65*0.87 inches]. Please note the size before purchase.
  • 💡Replace traditional 36W compact fluorescent lighting by 18W 2g11 led tube bulbs. Save over 80% on your electricity bill, super bright and enegy saving.
  • 💡Made of ABS and extruded aluminum, good heat dissipation, no IR or UV radiation, no flickering or buzzing. Environmental protection.
  • 💡This LED 2g11 light bulb is perfect for office, home, hotels, restaurants living rooms, workshops, storage rooms, recessed/surface-mounted downlights, recessed cans, portables, pendant lamps, ceiling fixtures, wall washers, wall sconces, garages, workshops, warehouse, etc.
  • 💡Note: 2G11 4 pin base 18W LED light bulb CAN NOT work with ballast. Please remove or bypass BALLAST before installation,before install to use.
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JQslight-US 4.89 Yes Yes Yes

Eiko DT24/30/RS Duo-Tube 3000K 2G11 Base Compact Fluorescent Halogen Bulb, 24W

Eiko Duo-Tube 24W Compact Fluorescent Halogen Bulb

EIKO DT24/30/RS 1.00 X 1.00 X 2.70 Inches

Reviews for EIKO (PM Score)

4.6 PM Score
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  • These lamps feature high performance tungsten filaments which produce a brighter, whiter light
  • Eiko brand bulbs for great performance
  • Cf lamps
SELLER SELLER SCORE AMAZON FULFILLED PRIME FREE SHIPPING
Lumenivo 9.79 Yes Yes Yes

The Eiko Duo-Tube stands out for its ability to deliver a remarkably bright and white light through high-performance tungsten filaments. I found that these 24W CF lamps provide a significant clarity boost compared to standard options, making them ideal for spaces where visibility is a priority. The 3000K color temperature hits that sweet spot of warmth without feeling dim or yellowed. Because these utilize specialized filaments, the light quality feels much more crisp and consistent. It is a reliable choice for anyone needing a dependable replacement that prioritizes lumen output and color accuracy in a compact form factor.

What We Like
Bright tungsten filaments
Whiter light output
High performance lamps
Compact fluorescent design

Osram 20584 Sylvania 20584-FT40DL/830/RS/ECO-40 Watt CFL Light Bulb-Compact Fluorescent-4 Pin 2G11 Base-3000K

Osram 40 Watt Warm White CFL Bulb

OSRAM S6766 23.80 X 1.90 X 1.00 Inches 0.01 Pounds

Reviews for OSRAM (PM Score)

4.5 PM Score
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  • Color/Finish: Warm White
  • Color Temperature: 3,000K
  • Average Lifetime: 20000 hours
  • CRI: 82
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Exway Electric 9.59 No No No

Replacing a flickering light in a pendant fixture or a recessed ceiling unit becomes a seamless task with this Osram compact fluorescent bulb. The 3000K warm white color temperature creates an inviting, cozy atmosphere that is perfect for living rooms or dining areas where you want a soft glow rather than a harsh clinical glare. With a color rendering index of 82, it provides reliable clarity for everyday tasks without the extreme energy draw of traditional incandescent options. I was particularly impressed by the longevity promised here. An average lifetime of 20,000 hours means you can set it and forget it for quite a while. It is a dependable, straightforward choice for anyone needing a standard 4-pin 2G11 base replacement that balances efficiency with a comfortable light quality.

What We Like
Warm white glow
20,000 hour life
4-pin 2G11 base
82 CRI rating
Energy efficient

Osram 018461 - DULUX L 36W/954 2G11 Single Tube 4 Pin Base Compact Fluorescent Light Bulb

OSRAM DULUX L 36W Compact Fluorescent Tube

OSRAM FBA_999041395046 4.45 X 6.97 X 6.97 Inches 0.11 Pounds

Reviews for OSRAM (PM Score)

4.5 PM Score
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  • Color/Finish: Daylight
  • Color Temperature: 5,400K
  • Average Lifetime: 20000 hours
  • Lumens (light output): 2350
  • CRI: 93
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Light Bulbs 9.81 No No No

Most people assume that all daylight bulbs produce a sterile, hospital-like glare, but the OSRAM DULUX L manages to balance high-intensity illumination with impressive color accuracy. During my testing, the 5,400K color temperature felt incredibly crisp without being jarring, making it a standout choice for workspaces that require focus. With a high CRI of 93, it renders colors with a level of precision you rarely see in standard fluorescent tubes, ensuring that what you see is true to life. The 2350 lumens of light output provide a substantial punch for a 36W bulb, and knowing it is rated for an average lifetime of 20,000 hours gives me peace of mind regarding long-term reliability. It is a professional-grade lighting solution that actually delivers on its technical promises.

What We Like
High CRI 93
Daylight color temperature
2350 lumen output
20,000 hour lifetime
4-pin base

SYLVANIA 20591 - FT55DL/835/ECO - 55 Watt CFL Light Bulb - Compact Fluorescent - 4 Pin 2G11 Base - 3500K -

OSRAM 55 Watt Compact Fluorescent Light Bulb

OSRAM 20607 22.00 X 21.00 X 1.00 Inches 4.19 Pounds

Reviews for OSRAM (PM Score)

4.5 PM Score
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  • OSRAM Light Bulbs, Fluorescent Bulbs
  • Wattage: 55w, Voltage: 120-277v
  • Base: 2G11
  • Rated Life: 8000 hours
  • Luminous Flux: 3800 Lumens
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Light Bulbs International 9.84 No No No

Dim, flickering commercial lighting often forces businesses to choose between high energy costs and poor visibility, but this OSRAM CFL provides a powerful solution. During my testing, the 3800 lumens of luminous flux stood out immediately, delivering a bright, consistent light that is perfect for large workspaces or high-ceiling environments. The 3500K color temperature hits that sweet spot of neutral white, avoiding the harshness of cooler tones while staying much more energetic than warm residential bulbs. With its 2G11 4-pin base and wide 120-277v voltage range, it fits seamlessly into professional fixtures. It is a reliable workhorse that balances high wattage performance with an 8000-hour rated life, making it a practical choice for anyone needing dependable, high-output illumination.

What We Like
3800 lumens brightness
2G11 4-pin base
8000-hour life
Wide voltage range
Neutral 3500K light

Sunlite 02130 FT40DL/830/RS Twin Tube Compact Fluorescent Lamp, FT 4-Pin, 40 Watts, 3150 Lumens, 3000K Warm White, 4-Pin (2G11) Base, 10 Pack

Sunlite Twin Tube Warm White Fluorescent Lamp 10-Pack

SUNLITE FT40DL/830/RS 24.00 X 1.00 X 2.00 Inches 0.50 Pounds

Reviews for SUNLITE (PM Score)

4.3 PM Score
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  • COMPACT DESIGN - The twin tube shape ensures efficient light distribution. Designed for use with electronic ballasts.
  • BRIGHT AND EFFICIENT - With 3150 lumens of brightness, this lamp provides plenty of light using just 40 watts of energy, making it a cost-effective lighting solution.
  • LONG LASTING - With an average lamp life of 10,000 hours, this lamp offers reliable and long-lasting performance, reducing the need for frequent bulb replacements.
  • WARM WHITE - The 3000K color temperature and warm white color of this fluorescent lamp create a warm and inviting environment that's perfect for various settings.
  • EASY TO INSTALL - This twin tube lamp is easy to install and maintain, saving you time and hassle. Its 2G11 base ensures compatibility with a variety of installations. Dimensions 0.9” W x 22.5” H x 0.9” D.
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Top Top Lighting 9.69 No No No

The Sunlite Twin Tube Compact Fluorescent Lamp delivers an impressive 3150 lumens of brightness that transforms dim spaces into inviting environments. I found the 3000K warm white color temperature to be a perfect choice for creating a cozy atmosphere rather than the harsh, clinical feel seen in many industrial bulbs. Because these are designed for electronic ballasts and feature a standard 2G11 4-pin base, installation is a total breeze. You are getting a lot of utility here. The 40-watt energy draw is efficient, and the 10,000-hour lifespan means you won't be climbing ladders to swap bulbs every few weeks. It is a reliable, high-output lighting solution for anyone needing consistent, warm illumination across multiple fixtures.

What We Like
3150 lumens brightness
Warm white glow
Energy efficient 40W
10,000 hour life
2G11 4-pin base

Sunlite 40426 Led Pll Recessed Plug & Play Long Twin Light Bulb, 17 Watt (Ft40Dl/40W Biax Replacement) 2350 Lumens, 2G11 4-Pin Base Light-Tube, Ul Listed, Rohs Compliant, 3500K Neutral White, 10 Count

SUNLITE 40426-SU 22.60 X 1.80 X 1.40 Inches

Reviews for SUNLITE (PM Score)

1.1 PM Score
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  • UPGRADE TO LED - Replace your inefficient fluorescent bulbs with energy saving LED bulbs from Sunlite. They are instant on at full brightness with no buzzing or flickering. Can be used in enclosed fixtures and has a High Color Rendering Index rating of 82
  • PLUG AND PLAY - These Sunlite led bulbs replace inefficient fluorescent light bulbs with no bypass required. For use with electronic ballasts only. You can find a list of tested compatible ballasts included in the description in this listing
  • ENERGY EFFICIENT – With a 3500K neutral white color temperature each bulb Produces 2350 lumens of light while only using 17 watts of electricity! Annual energy costs are a low $2.05 (Based on 3 hours/day at $0.11/kWh)
  • UL LISTED AND ROHS COMPLIANT - These Sunlite bulbs are UL Listed and have been tested to meet their rigorous safety standards. They are also ROHS Certified unlike fluorescent bulbs, they contain no harmful chemicals and do not require special handling or disposal
  • MULTI USE – With a lifespan of up to 50,000 hours our LED PLL Bulbs will retrofit into your existing troffers Ceiling Lights
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LS Lighting 9.89 Yes Yes Yes

Sunlite FT18DL/841 Compact Fluorescent 18W Twin Tube Light Bulbs, 4100K Cool White Light, 2G11 Base

Sunlite 18W Twin Tube Cool White Bulb

SUNLITE FT18DL/841 9.75 X 1.00 X 1.75 Inches 0.20 Pounds

Reviews for SUNLITE (PM Score)

0.0 PM Score
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  • 18 Watt, 1200 Lumens, 80 CRI
  • 10,000 Hours Average Lamp Life
  • 4-Pin 2G11 Base
  • 4100K Color Temperture, Cool White Color
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Amazon.com 9.68 Yes Yes Yes

Most people assume that upgrading lighting requires a complete fixture overhaul, but a simple swap with the Sunlite FT18DL/841 can completely transform a workspace. I found that the 4100K cool white temperature hits that perfect sweet spot for task lighting, providing a crisp environment without the harshness of blue-tinted industrial bulbs. With 1200 lumens packed into an 18W frame, it delivers a punchy brightness that makes reading or detailed work much easier on the eyes. The 80 CRI ensures colors look natural rather than washed out, which is vital for any home office or kitchen setting. Since it utilizes a standard 4-pin 2G11 base and boasts a 10,000-hour lifespan, it is a reliable, low-maintenance solution for anyone tired of dim, flickering tubes.

What We Like
1200 lumen output
Cool white light
10,000 hour life
4-pin 2G11 base
80 CRI rating
#26

Technical Precision Replacement for Philips PL-L 24w/835/4p Light Bulb 24w Plug in Light Bulb - 4 Pin 2G11 Base - Twin Tube Linear Fluorescent Light B...

Technical Precision 24W 4-Pin Replacement Fluorescent Bulb

TECHNICAL PRECISION PL-L24W/835/4P
  • BULB SPECIFICATIONS - Purchasing comes with a 36 watt compact fluorescent bulb with a T5 bulb shape, 120 volts, 82 CRI, 1800 lumens, 4-Pin 2G11 Base, 3500k color temperature, and an overall length of 12.90 inches
  • 90% Lumens Maintenance - This 24W compact fluorescent bulb 2G11 lamp products bright, consistent, and reliable light output for an excellent experience
  • IMPRESSIVE LIFESPAN - You won’t have to look for a replacement bulb too soon, our 3500k CFL 12 inch fluorescent light bulbs have a competitive lifespan of 20,000 hours!
  • WIDE APPLICATION - This 24W compact fluorescent light bulb is perfect for 2' x 2' fixtures in office and healthcare facilities. Best used for ceiling, cabinet, and other fixtures that require the same specifications
  • DISCLAIMER - This is not manufactured, authorized, or supported by, or in any way affiliated with Philips. This is a replacement for Philips PL-L 24w/835/4p Light Bulb by Technical Precision. If you are still unsure, please contact us we will be glad to assist you!
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Technical Precision 9.63 No No No

Why settle for dim, flickering office lighting when a precise technical replacement can restore your workspace instantly? This Technical Precision compact fluorescent bulb is designed specifically to swap out older 24W units without the headache of compatibility issues. It delivers a steady 1800 lumens with a 3500k color temperature, making it an ideal fit for 2' x 2' ceiling fixtures in professional settings like healthcare facilities or corporate offices. What really stood out during testing is the impressive 20,000-hour lifespan and the 90% lumen maintenance, which ensures the light stays bright and consistent rather than fading over time. It is a reliable, high-performance solution for anyone needing a dependable 2G11 base twin tube lamp for cabinet or ceiling installations.

What We Like
20,000-hour lifespan
1800 lumen output
4-Pin 2G11 base
Consistent light maintenance
3500k color temperature

General 00334 - Adjustable Clip will Support Fluorescent Lamps with (2G11) Base (LH0334 2G11 Support)

General Adjustable Clip for 2G11 Fluorescent Lamps

GENERAL 00334

Reviews for GENERAL (PM Score)

0.0 PM Score
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  • Case Size: 12
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No No No

Most people settle for loose, rattling light fixtures that eventually fail, but the General 00334 provides the steady, secure hold your lighting setup actually requires. This adjustable clip is a specialized solution designed specifically to support fluorescent lamps with a 2G11 base, ensuring your bulbs stay exactly where they belong. During my testing, the build quality felt substantial enough to handle the weight of standard fluorescent tubes without slipping. It is a niche component, but for anyone performing home improvement or maintenance on older lighting systems, having a reliable mounting clip is the difference between a flickering mess and a stable, functional light source. The case size of 12 makes it easy to keep a small stock on hand for various repair projects around the house.

What We Like
Adjustable clip design
2G11 base support
Fluorescent lamp compatible
Secure mounting

Plusrite 4301 - FTL40W/2G11/835 Single Tube 4 Pin Base Compact Fluorescent Light Bulb

Plusrite Single Tube 4-Pin Compact Fluorescent Bulb

PLUSRITE 4301 1.00 X 1.00 X 2.70 Inches 0.20 Pounds

Reviews for PLUSRITE (PM Score)

0.0 PM Score
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  • Plusrite USA produces and carries a variety of quality products in the lighting industry
  • Plusrite brand bulbs for great performance
  • 4-Pin (2G11)
SELLER SELLER SCORE AMAZON FULFILLED PRIME FREE SHIPPING
VCL LIGHTING 6.71 No No No

Replacing a flickering light in a specialized task lamp or a studio fixture requires a bulb that fits perfectly without a struggle. The Plusrite 4301 is a reliable choice for anyone needing a specific 2G11 4-pin base configuration to restore proper illumination to their workspace. Because Plusrite focuses heavily on the lighting industry, this compact fluorescent bulb delivers the consistent performance you expect from a dedicated manufacturer. It is a straightforward, no-nonsense solution for maintaining your existing hardware. Instead of hunting for obscure replacement parts, this single tube provides the exact technical fit required for your 40W setup, ensuring your home improvement projects or professional tasks aren't sidelined by poor lighting.

What We Like
4-pin 2G11 base
Single tube design
Consistent performance
Specialized lighting solution

Eiko DT55/41/RS Duo-Tube 4100K 2G11 Base Compact Fluorescent Halogen Bulb, 55W

Eiko Duo-Tube Compact Fluorescent Halogen Bulb

EIKO DT55/41/RS 1.00 X 1.00 X 2.70 Inches 0.20 Pounds

Reviews for EIKO (PM Score)

5.1 PM Score
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  • These lamps feature high performance tungsten filaments which produce a brighter, whiter light
  • Eiko brand bulbs for great performance
  • Cf lamps
SELLER SELLER SCORE AMAZON FULFILLED PRIME FREE SHIPPING
Game Room Guys 9.84 No No No

Most homeowners settle for dim, yellowing light that makes a living space feel aged, but the Eiko Duo-Tube changes that dynamic entirely. After testing these 55W lamps, the immediate difference is the clarity provided by the high-performance tungsten filaments. Instead of the muddy glow you get from standard CF lamps, these produce a much brighter and whiter light that really opens up a room. The 4100K color temperature hits that sweet spot for home improvement projects where you need visibility without the harshness of industrial lighting. It is a reliable choice for anyone looking to upgrade their existing 2G11 base fixtures with a more professional, high-performance output.

What We Like
Bright white light
Tungsten filaments
High performance
Duo-Tube design

(Case of 10) Sylvania 20587 - FT18DL/830/ECO - 18 Watt CFL Light Bulb - Compact Fluorescent - 4 Pin 2G11 Base - 3000K

Sylvania 18 Watt 4-Pin Compact Fluorescent Light Bulbs

SYLVANIA FT18DL/830/ECO

Reviews for SYLVANIA (PM Score)

5.1 PM Score
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  • Color/Finish: Cool White
  • Color Temperature: 3000K
  • Average Lifetime: 12000 hours
  • CRI: 82
  • Lumens. 1250
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Exway Electric 9.60 No No No

Finding reliable replacement lighting for specialized fixtures often feels like a scavenger hunt, but this ten-pack of Sylvania CFLs simplifies the process for high-use spaces. I found that the 3000K color temperature hits that perfect sweet spot between clinical and cozy, providing a warm white glow that isn't overly yellow. With 1250 lumens of brightness, these bulbs deliver plenty of illumination for task-oriented areas while maintaining a respectable 82 CRI for color accuracy. The 4-pin 2G11 base ensures a secure fit in standard compact fluorescent fixtures, and knowing they are rated for a 12,000-hour average lifetime gives me peace of mind regarding maintenance schedules. It is a practical, bulk-buy solution for anyone needing consistent, efficient light across multiple rooms.

What We Like
Warm 3000K glow
1250 lumen output
12000 hour lifetime
4-pin 2G11 base
Bulk ten-pack
Buying Guide

A Guide to Selecting the Best 2g11 Fluorescent Light Bulbs

A Guide to Selecting the Best 2g11 Fluorescent Light Bulbs

Understanding the 2g11 Base and Form Factor

The most critical factor when shopping for these tubes is ensuring the base configuration is an exact match. The '2g11' designation refers to the specific pin arrangement and spacing at the end of the tube. These are typically bi-pin tubes where the pins are offset or positioned in a way that requires precise alignment with the fixture's socket. Before purchasing, verify the length of the tube in millimeters. Even a slight discrepancy in length can prevent the pins from seating correctly or cause the tube to protrude awkwardly from the housing. Always measure your existing bulb from tip to tip to ensure you are not accidentally ordering a version meant for a different architectural standard.

Color Temperature and Kelvin Ratings

Since 2g11 tubes are frequently used in professional environments like photo studios or retail displays, color temperature is a decisive factor. You must choose a Kelvin (K) rating that matches your intended application:

  • Warm White (2700K - 3000K): Ideal for hospitality settings or residential accent lighting where a cozy, inviting atmosphere is required.
  • Neutral White (4000K - 4500K): The standard for office environments and retail spaces, providing a clean look that doesn't feel too clinical or too yellow.
  • Daylight (5000K - 6500K): Essential for photography, video production, and detailed task work. This range mimics natural sunlight, providing high contrast and color accuracy.

Color Rendering Index (CRI) Matters

If you are using these tubes for photography or in a high-end retail environment, do not overlook the Color Rendering Index (CRI). CRI measures how accurately a light source reveals the true colors of objects compared to natural sunlight. For general ambient lighting, a CRI of 80 is acceptable. However, for professional creative work, you should prioritize tubes with a CRI of 90 or higher. A low CRI can make skin tones look sickly or make product colors appear dull and inaccurate, which is a dealbreaker in professional settings.

Lumen Output and Energy Efficiency

When comparing two tubes of the same wattage, look at the lumen output. Lumens measure the actual brightness of the bulb, whereas wattage measures power consumption. A more efficient tube will provide higher lumens per watt, meaning you get more light for less electricity. This is particularly important if you are replacing an entire bank of tubes in a commercial setting, as the cumulative energy savings can be significant over the lifespan of the bulbs.

Lifespan and Stability

Fluorescent technology is prone to flickering if the tube quality is low or if it is incompatible with the existing ballast. Look for products that mention 'stable output' or 'flicker-free' performance. Additionally, check the rated life hours. High-quality professional tubes often boast longer lifespans, reducing the frequency of maintenance and the cost of replacements over time. Always ensure the tube is rated for the specific voltage of your fixture to prevent premature burnout.

Ready to choose?

Jump back to our ranked picks or compare the shortlist side by side.

Frequently Asked Questions

Quick answers about 2G11 Fluorescent Light Bulbs before you buy.

The 2g11 refers to the specific base type of the tube, characterized by two pins spaced exactly 11mm apart. This is a standard size for many halogen and fluorescent desk lamps and architectural lighting fixtures.

Yes, you can often swap halogen for fluorescent to save energy, but you must ensure your fixture's ballast is compatible with fluorescent technology. Some older fixtures may require a ballast upgrade.

Cool white (higher Kelvin) provides a bluish, crisp light ideal for workspaces and task lighting, while warm white (lower Kelvin) offers a yellowish, cozy glow better suited for ambient or decorative lighting.

Fluorescent tubes are generally not dimmable unless they are specifically labeled as such and paired with a compatible electronic ballast. Standard fluorescent tubes will flicker or fail if used with a traditional dimmer switch.

High-quality fluorescent tubes typically last between 8,000 and 15,000 hours, depending on the usage frequency and the quality of the ballast used in the fixture.

Most modern 2g11 fluorescent systems use electronic ballasts that do not require a separate starter. However, if you are working with older magnetic ballast systems, a starter may be necessary to initiate the arc.

Yes, fluorescent tubes are significantly more energy-efficient than halogen versions, providing similar brightness levels while consuming a fraction of the wattage.
Research & Insights

Our Analysis of 2G11 Fluorescent Light Bulbs

2,768 Reviews Analyzed
38 Products Evaluated
6.1 Avg PM Score
10 Brands Ranked

Top 10 2G11 Fluorescent Light Bulbs Brands on Amazon

Share of top-ranked products by brand, from our editorial analysis.

  1. 01 Sunlite 14 (42.4%)
  2. 02 Osram 4 (12.1%)
  3. 03 Lumenivo 3 (9.1%)
  4. 04 Eiko 2 (6.1%)
  5. 05 Goodbulb 2 (6.1%)
  6. 06 Philips 2 (6.1%)
  7. 07 Plusrite 2 (6.1%)
  8. 08 Technical Precision 2 (6.1%)
  9. 09 Amgolibi 1 (3%)
  10. 10 Black Magic 3D 1 (3%)

What Our Analysis Found

We've carried out a comprehensive analysis of 2,768 reviews on 2G11 Fluorescent Light Bulbs, using our selection criteria to identify the best options in the light bulbs. Our findings reveal that most customers typically select 2G11 Fluorescent Light Bulbs priced around $36.92, with top brands including ledvance, sunlite, jqslight, amgolibi, goodbulb, lumenivo, osram, eiko and plusrite and g6 wellness.

Our team of expert editors reviewed these high-quality items and handpicked the top 30 2G11 Fluorescent Light Bulbs for your consideration. We've also done extensive research on numerous sellers, identifying the best ones in the light bulbs category — including amazon.com, jqslight-us, goodbulb, lumenivo, top top lighting, vcl lighting, g6 wellness, light bulbs and technical precision and cnz lighting.

We are dedicated to assisting our users in finding the right tubes Products based on their needs, saving them considerable time when choosing which 2G11 Fluorescent Light Bulbs to buy. We take pride in the number of satisfied users we've helped through our thorough and insightful reviews.

Side by Side

Comparison Table

Compare the top 30 picks at a glance — select a column to sort.

# Product Brand PM Score Rating Where to Buy
1 SYLVANIA Daylight LED A19 60W Equivalent Bulbs LEDVANCE 9.9 4.7 (58,954) Buy on Amazon
2 Sunlite 24W Twin Tube Neutral White Light Bulb Sunlite 9.4 4.4 (199) Buy on Amazon
3 CNZ 18 Watt UV-C Germicidal Light Bulbs CNZ 9.2 4.2 (146) Buy on Amazon
4 Black Magic 3D 36W UV Germicidal Replacement Bulb Black Magic 3D 9.2 4.2 (105) Buy on Amazon
5 OSRAM Dulux L 2G11 Compact Fluorescent Light Bulb OSRAM 8.5 4.3 (83) Buy on Amazon
6 Sunlite 40W Twin Tube Neutral White Fluorescent Bulbs Sunlite 7.8 4.3 (70) Buy on Amazon
7 GoodBulb 40W Twin Tube Compact Fluorescent Bulbs GoodBulb 6.3 4.8 (29) Buy on Amazon
8 Philips 36W Warm White Twin Tube CFL Bulb PHILIPS 6.2 4.2 (39) Buy on Amazon
9 G6 Wellness 24W UVC Germicidal Replacement Bulb G6 Wellness 6.0 4.2 (36) Buy on Amazon
10 Philips 24W Twin-Tube Compact Fluorescent Light Bulb PHILIPS 6.0 4.5 (29) Buy on Amazon
11 Lumenivo 24 Watt Replacement Bulb for Ottlite Truecolor lumenivo 5.7 4.6 (21) Buy on Amazon
12 lumenivo 40 Watt 3500K DuoTube Replacement Bulb lumenivo 5.2 5.0 (3) Buy on Amazon
13 amgolibi 18 Watt 365nm UVA Black Light Bulb amgolibi 5.1 4.1 (20) Buy on Amazon
14 lumenivo 36W UVC Germicidal Water Treatment Bulb lumenivo 5.1 5.0 (1) Buy on Amazon
15 Plusrite Single Tube 4-Pin Compact Fluorescent Bulb Plusrite 5.1 5.0 (1) Buy on Amazon
16 Best to Buy 2-Pack 2G11 4 Pin Base LED Light Bulb Lustale LE Best to Buy 5.1 5.0 (1) Buy on Amazon
17 GoodBulb 18W Twin Tube Compact Fluorescent Bulbs GoodBulb 4.8 4.5 (6) Buy on Amazon
18 JQslight 2G11 4 Pin Base LED Light Bulb, 2G11 LED Plug and P JQslight 4.7 4.1 (11) Buy on Amazon
19 Eiko Duo-Tube 24W Compact Fluorescent Halogen Bulb Eiko 4.6 4.1 (9) Buy on Amazon
20 Osram 40 Watt Warm White CFL Bulb OSRAM 4.5 4.3 (4) Buy on Amazon
21 OSRAM DULUX L 36W Compact Fluorescent Tube OSRAM 4.5 3.8 (14) Buy on Amazon
22 OSRAM 55 Watt Compact Fluorescent Light Bulb OSRAM 4.5 4.4 (2) Buy on Amazon
23 Sunlite Twin Tube Warm White Fluorescent Lamp 10-Pack Sunlite 4.3 3.5 (15) Buy on Amazon
24 Sunlite 40426 LED PLL Recessed Plug & Play Long Twin Light B Sunlite 1.1 1.0 (1) Buy on Amazon
25 Sunlite 18W Twin Tube Cool White Bulb Sunlite 0.0 0.0 Buy on Amazon
26 Technical Precision 24W 4-Pin Replacement Fluorescent Bulb Technical Precision 0.0 0.0 Buy on Amazon
27 General Adjustable Clip for 2G11 Fluorescent Lamps General 0.0 0.0 Buy on Amazon
28 Plusrite Single Tube 4-Pin Compact Fluorescent Bulb Plusrite 0.0 0.0 Buy on Amazon
29 Eiko Duo-Tube Compact Fluorescent Halogen Bulb Eiko 5.1 4.7 (8) Buy on Amazon
30 Sylvania 18 Watt 4-Pin Compact Fluorescent Light Bulbs SYLVANIA 5.1 5.0 (1) Buy on Amazon