Best Chime Door Bell Transformers in 2026

【Power Multiple Thermostats/Doorbells】Replace and upgrade underpowered transformers with this 24V AC Transformer, while providing ample power to single or multiple thermostats and doorbells

【Specification】Input: 120 V/AC, 60 HZ; Output: 24 V AC at 40 VA, reliable performance and safe to use

【Wide Applications】Compatible with most brands of doorbells or thermostats, low voltage hardwired doorbell power supply for residential, commercial and industrial use

Power up multiple thermostats and doorbells: replaces and upgrades underpowered transformer with this 24V transformer, offering plenty of power for single or multiple thermostats and doorbells at the same

Universal compatibility: this 24 volt transformer compatible with Nest, Ecobee, Honeywell and Sensi smart thermostats; Also compatible with Ring Video Doorbell, Ring Video Doorbell 2, Ring Video Doorbell Pro, Nest Skybell Doorbell, and other devices that require constant 24 volt power for operation

SPECIFICATION: Input is 120 Volt, 60 HZ; Output: 24 Volt/ 40 VA; Tip: The load voltage(when the doorbell is running) is 24V and the output of no-load voltag is about 27V

CHIME WITH TWO SOUNDS: Classic two-note “Ding Dong” sound for the front door button and has an additional connection with a separate "Dong" for the rear or side door

DIMENSIONS: Cover: 9” W x 5” L Base: 7-1/8” W x 4-5/8” L

16-VOLT, 30VA DOORBELL TRANSFORMER: For powering up to three hardwired doorbell chimes or modern smart video doorbells

Replace your underpowered doorbell transformer.

Optimize the performance of your Video Doorbell Wired, Video Doorbell Pro, Video Doorbell Pro 2 with increased power.

Easily replaces most North American doorbell transformers.

【AC 18V 500mA】: Input :AC120V, 60Hz. Output: AC18V, 500mA. Length: 16.4ft (500cm). Compatible With: Ring Video Doorbell, Ring Video Doorbell 2, Ring Video Doorbell Pro, Nest Hello Video Doorbell,for Zmodo smart greet wifi doorbell.

【Connecting You Doorbell Ring】: This Power Supply Adapter for the Ring can connect you Ring Video Doorbell to the power adapter directly,forget the hassle of charging your battery and let your Ring continuous operation.

【Easy Installation】: Assemble through door hole and simply connect the wire to your Ring,install and setup can be completed in a few minutes,no need for an existing doorbell or new wiring,can be installed on any door.

MULTIPLE USAGES - A device you could use for both doorbells and transformers, 24 Volt transformer can be also used for multiple thermostats and doorbells, offering plenty of power for single or multiple devices (2-3) at the same time.

MORE STABLE CONNECTION - Greater power connection, higher load and longer service life of products. XX type pure copper wire has a small difference in conductivity and more stable current, which is 10% more wire usage than common inverters. Allows more stable charging connection for 2-3 devices at the same time.

DOORBELL TRANSFORMER - It's compatible with Ring Video Doorbell, Ring Video Doorbell 2, Ring Video Doorbell Pro, Zmodo Smart Greet Wi-Fi Video Doorbell and Nest Hello Doorbell, etc. Or any other devices that require constant 24V power for operation.

➡︎ Easily Replace your Old Transformer - Plug in Alarm System Transformer for your Security System

➡SPECIFICATION: input voltage: 120 VAC, 60Hz; Output voltage: 16.5V, 40VA SAFE AND STABLE auto-resetting (PTC) fused secondary, LED green power indicator

➡ELIMINATATE DOORBELL UNDER POWER HASSEL:16.5V 40VA plug in transformer, replaces and upgrades underpowered transformer with this 16.5V AC transformer, offering plenty of power for your doorbells

Powering thermostats and doorbells: replacing underpowered transformers

<p><b>[Specifications]</b> Input voltage: 120 v AC, 60 Hz Output voltage: 16 v AC at 30 VA.

<p><b>[Convenience] </b>The replacement can be completed in a short time. Tighten or screw it to the electrical box for safe handling.

Universal Compatibility: This 24V transformer fits for Nest, Ecobee, Honeywell and Sensi smart thermostats; Also compatible with Ring Video Doorbell, Ring Video Doorbell 2, Ring Video Doorbell Pro, Nest Skybell Doorbell, and other devices that require constant 24 volt power for operation.

Power up multiple thermostats / doorbells: Replaces and upgrades underpowered transformer with this 24V AC transformer, offering plenty of power for single or multiple thermostats and doorbells at the same time.

Eco-friendly: Eco-friendlyzinc plating technology , no pollution.

16-volt, 10VA transformer for use with most NuTone door chimes; order in standard package of six to help assist with your planning and still retain that economical edge

Quick install transformers, built to last so you should have fewer call backs

One 16-volt, 10VA transformer needed for a single chime

[Product specifications]: 16V 30VA doorbell transformer: low voltage hardwired door chime transformer, Primary Input: 120V AC 60Hz, Secondary Output: 16V AC 30 VA, Class B insulation, Class 2 transformer

[Compatible with]: For use with many doorbell transformers, Ring Doorbell, Ring Doorbell 2, Ring Video Doorbell Pro, Nest Hello Video Doorbell

[Easy to install]: screw down and thread clamps to electrical box.

16V 30 VA doorbell transformer: 16-volt, 30 VA low voltage hardwired door chime transformer

Handy use: power single or multiple door chimes in one home with ease, replace the old and under powered doorbell transformer for better performance

Input: 120V, 60 Hz; Output: 16V at 30 VA

Chime transformer from the chime transformer collection

Height: 3.00 inches Width: 3.00 inches

Style: traditional light Type: chimes, alarms, vents

20V C wire power adapter: plugs into your standard 110 v/ 120 v outlet and converts to 20 volt 500 ma AC current

Doorbell transformer power supply: quality designed to compatible with wireless doorbell wireless chime arlo video doorbell, just charge directly, no need to remove and charge up the battery, convenient and practical to solve the problem of low battery

UL certified: UL certification passed, stable and durable operation 20V transformer

【Power Multiple Doorbells】: 16V 30VA door bell transformer, great replacement for existing underpowered transformer, like 10V 5VA / 16V 10VA. Sufficient power to control single or multiple doorbell and door chimes in one home.

【Universal Compatibility】: 120V AC to 16V AC, compatibles with Ring Video Doorbell Pro, Ring 2, Ring 3, Google Next Hello, Unifi G4 and other devices that require constant 16 volt power for operation.

【Easy Installation】: Twist the black screw and thread clamp to electrical box, comes with 3 wire nut for convenient wire connection. Can be also mounted on the wall. Note: Turn off your electrical breaker first.

Safe and Guaranteed Quality: UL certified, PTC design for circuit protection, avoid damage the components in the circuit; Auto resetting, with LED green power indicator, positive/ negative/ screw terminals

Specification: input is 120V/ AC, 60 HZ; Output: 16V/ 30 VA; Tip: the load voltage (when the doorbell is running) is 16V and the output of noload voltage is about 18V, it is normal situation and won't affect any use; When testing the product, pay attention to use an AC voltmeter or a multimeter to test the output voltage value and use a voltage tester to measure the accurate voltage output data

Easy Installation: output with screwing the cable on the terminals, you can arrange your cables freely according to the length you need, to make the wires neat; Please notice: only equip with plug in transformer, no extra wires included

COMPATIBILITY: Video Doorbell Transformer compatible with Video Doorbell 2020 release, Video Doorbell 2/3/3plus/4, Video Doorbell Pro /Pro 2, Video Doorbell Wired (NOT include Doorbell and Battery).

CONTINUOUS CHARGING: Doorbell power supply uses 18V 500mA AC transformer to charge the Doorbell, no need to replace the battery frequently. It is recommended to make sure the battery is fully charged before use

SATETY PROTECTING: Door bell Transformer has safety certification. Using high-quality PVC weatherproof material, it has the characteristics of weatherproof, overcurrent protection, overvoltage protection, and short circuit protection. Protect your property and personal safety.

Wide Compatiblity: Power your Doorbells (Ring, Nest, Arlo, Eufy, Wyze, Ring 1/2/2 Pro/3/3Plus/4/Pro, HLT, SimpliSafe, Ecobee, Sensi, Blink Video Doorbell, Google Nest, Zmodo Smart Greet, Skybell August Doorbell, Security Doorbell, Arlo Camera etc.) and other devices that require constant 18 volt power for operation, enables you to charge your devices safely.

Features: Input AC 120V, 60Hz 0.2A. plugs into your standard 110 v/120 v outlet and converts to 18 volt 500 mA AC current.(black)

Easy To Use: 2 pin non-polarity wires support easy and quick install, Assemble along the wall from your outlet to the doorbell without the existing doorbell or wiring. 26ft (8M/315 inches) extra long cable

Universal Compatibility - This power adapter is compatible with Blink Doorbell, Wyze Doorbell, Google Nest Doorbell, Arlo Doorbell, Eufy Doorbell, Simplisafe Doorbell and other Video Doorbells that require 24V 500mA current for operation.

Easy to Use - Assemble along the wall from your outlet to the doorbell and thermostat without the existing doorbell or wiring. Easy installation and be able to set up in minutes.

Long Cable Design - 8M(315 inch) long power cable, no more worrying about the distance between the socket and the Video Doorbell, easily plug it into an electrical outlet inside or outside your house.

✅This 24 Volt transformer is UL-certified, offers reliable performance

✅Input :120 VAC, 60 Hz; Output: 24 V/ 40 VA

✅Easy to install: screw down and thread clamps to electrical box

Input: 120 v AC, 60 Hz; Output: 16 v AC at 30 VA

Wide Usage: low voltage power sources for residential, commercial, and industrial uses. compatible with Ring Video Doorbell Pro, Nest Hello Video Doorbell, etc.

Easy to Install: Turn off power before installation, then screw down or threaded clamp to electrical box, simple to wire up

HQRP® Replacement Transformer; Replaces and upgrades underpowered transformer with this Tri-Volt (8V 20VA, 16V 30VA or 24V 30VA) AC transformer;

Input: 120V AC; Output: Tri-Volt (8V 20VA, 16V 30VA or 24V 30VA); UNIVERSAL COMPATIBILITY: this transformer compatible with 16v Doorbells, and other devices that require constant 8V 20VA, 16V 30VA or 24V 30VA volt power for operation;

UL Listed; Safety Features: High Efficiency and Reliability;

【DESIGNED FOR BLINK VIDEO DOORBELL】ONLY compatible with Blink Video Doorbell. No need to change the battery or spend your money on blink batteries.

【LONG CABLE】16.4ft/5m long extension power cable allows you to position your doorbell inside or outside your house without worrying the distance.

【FCC& UL CERTIFIED】 5V Power adapter is UL certified, safe and no battery damage, let your blink doorbell provide continuous security.

Upgraded 24V Doorbell Transformer - With the upgraded system, the new adapter is more stable and without noise during use. Continuously transfer 110/120v to 24volt Make your doorbell works more stable and safe.

Wide Compatibility - This plug in adapter is compatible with most doorbells on the market, including Ring, Nest, Arlo, Eufy, Wyze and others.

Low Battery Issue is Solved - The adapter is a quick and convenient way to charge your smart doorbells continuously. Now get rid of all battery issues and with no more interrupt or any safety concerns.

【Specification】Input: 120 V 50/60HZ; Output: 24 V 40VA, this 24 volt transformer is UL-certified, offers reliable performance and safe to use

【Universal compatibility】 this 24v transformer fits for Nest, Ecobee, Honeywell and Sensi smart thermostats; Also compatible with Ring Video Doorbell, Ring Video Doorbell 2, Ring Video Doorbell Pro, Nest Skybell Doorbell, and other devices that require constant 24 volt power for operation

【Power Multiple Thermostats/Doorbells】Replace and upgrade underpowered transformers with this 24V AC Transformer, while providing ample power to single or multiple thermostats and doorbells（Perfect replacement for an old transformer and will work with any wired door chime）

Sufficient Power Supply - 24v universal US hardwired transformer powers popular smart doorbells. Enough power out put for variaty of doorbells. Compatible with Ring video doorbell (2020 release, 3/4/plus, and pro 1/2), Nest Hello, Eufy, Skybell, Arlo, etc. Continuously converts 110/120v to 24V AC at 40VA

UL Listed Transformer - A certificated battery backup is stable and sturdy for years use. The transformer has been tested 100% safe with over current protection, overload protection and short circuit protection.

Convenient for Single/Multiple Door Chimes - “Low battery” issues is solved. The adapter is a quick and convenient way to charge your smart doorbells continuously. It is capable for single or multiple door chimes use in one house.

Doorbell Chime Kit

Includes: 1 Chime, 1 Transformer, 1 Lighted Stucco Button

8912 DC with Lighted Stucco Button