Best Induction Surface Electric Cooktops in 2025

【220-240V Electric Cooktop，No Plug】Note: this 24 inch electric stove top is a high-power product, its total power is up to 5700W, so it needs a higher voltage, suitable for 220-240V. This kind of huge electric cooktop on the market generally has no plug, so you need to find qualified people to install it. Because the heating speed of common electric ceramic cooktop is slow, we provide high voltage to solve the problem of slow heating perfectly.

【Knob Control, Easy to Use】This 3 burners electric cooktop is operated by knob, it hasn't any complicated function buttons, knob control electric cooktop is very simple to use, perfectly for the elderly or people with poor eyesight. Once powered on, the 24 inch electric cooktop can be heated by gently twisting the knob, and the electric cooktop 3 burners has 9 heating levels to meet the needs of any food at different temperatures.

【Safe Electric Radiant Cooktop】Although this electric hob has few functions, it is very safe. It has built-in residual heat indication and overheat protection,automatic safety shut off function, when it detects that the internal temperature of the glass electric cooktop is too high, it will automatically shut down. You don't have to worry about gas leakage and open fire spread. To better protect your family, this 240v stove is a good choice.

✔ Protect The Electric Stove ✔: When there is a cabinet installed above your electric stove, you must not want the items inside to fall and damage your electric stove, you have this thick rubber electric stove mat , which can be used as a buffer when the items are dropped, Effectively protect your electric stove, you can also put it on it to block the ash layer and prevent scratches when you are not using the induction stove. This classic black electric stove mat gives you peace of mind.

✔ Multi-Purpose Full Stove Covers for Electric Stovetop ✔: This induction cooker pad from QTECLOR can not only be used on the electric stove, but also can be used as a material preparation area on the top of the induction cooker when using the oven or when preparing dishes, expanding additional storage space for items, It can also be used as a countertop mat, tableware drying mat, washing machine top cover, placed on the washing machine to block the ash layer, used as a pad for ironing clothes.

✔ High Quality Anti-Slip Mat ✔: The square mat is made of rubber, no odor, soft, waterproof, heat-resistant, non-slip layer, which allows you to use this mat without slipping, reusable, easy to clean, and can be wiped off with a damp cloth or machine wash.

🔌【2 Burners Electric Cooktop 220v -240v】Note: this 12'' electric stove top is suitable for 220-240v, has no plug. If you don't know how to wire, it's recommended to find an electrician to help you. Although this high-power 220v cooktop doesn't come with a plug, its burner is more powerful than other 110v electric stove. With 2 high powerful burners of 2000W/1000W+1200W, you can cook food much faster,saving more time.

🍷【Beautiful Wooden Pattern Surface】This 12 inch electric cooktop no longer uses ordinary drab black glass panel, but uses a unique wooden glass, each panel has a unique wooden pattern. Wooden material surface, harder, scratch-resistant, easy to clean. Beautiful wooden pattern to complement any ceramic tile and kitchen environment. Bring home this wooden electric radiant cooktop and make your kitchen even more special, less monotonous.

🔥【Multi-Function Electric Ceramic Cooktop】Karinear sensor touch control electric cooktop is easy for anyone to use its various functions. To improve the cooking experience for customers, this built-in electric cooktop is equipped with a child lock, 99-mins timer, residual heat indicator and boost function. Electric stove top 2 burners have 9 power levels to meet the different temperature needs of various foods, suitable for boil, stew, fry, stir fry.

【4-zone glass electric cooktop 】 The power of the triple zone is 2300/1600/800W; the roasting zone is 2000/1100W; the other two are 1800W and 1200W separately. With 4 cooking zones with different power reasonable cooking zone layout make sure you can prepare different meals together to save time! TIPS: The cooktop without plug, hard-wired, and installation must be completed by professional technician.

【9 power levels for precise heating】You can use electric stove tops for steaming, frying, deep frying, stir-frying, roasting and even boiling water. The AMZCHEF electric stove top has a higher heat conduction effect for faster heating and energy saving. With this electric stove with 4 burners, you can easily prepare delicious meals for a party or family gathering.

【More safety】With the help of a sensor monitor, it is intelligent enough to provide various protection functions such as over-temperature protection, automatic shutdown, residual heat warning, and child safety lock. Meanwhile, the countertop stove top has a built-in multi-function timer. You can set the time for the electric stovetop to turn off automatically.

FIREPROOF AND HEAT RESISTANT - FLASLD glass stove top protector can resistant heat up to 550℃/1022℉, It can placed on cooktop that is turned off but still hot.Fireproof does not mean that it can withstand all the heat of the induction cooker. We recommend waiting for 3 minutes after using the induction cooker before putting on the cover.

PROTECTS ELECTRIC STOVE TOP - Your electric stove top is valuable. Defend it from cracks, scratches, dirt and grime with your essential stove cover for electric and glass stove tops.

EXTRA COUNTER SPACE - Give your an additional work surface, Great to prepare food or any kitchen activity you need more counter space.Anti-slip coating makes the stove top cover stay in place when using it, Flexible and easy to fold for storage.

The USA & Canada ETL Certified Electric Stove Induction Cooktop designed and engineered in the USA by Empava Appliances with 2 Years US Based Manufacturer Warranty.

The flawless Empava smooth vitro ceramic glass surface allows for effortless cleanup, manufactured without the release of hazardous metals into the ground and withstands intense heat without cracking or chipping. Compatible to install above any Empava 24/30 in. under-counter single wall oven. Most stainless steel and cast-iron cookware are induction compatible.

Hot Surface indicator - An "H" will appear in the surface cooking area display let you know when elements are hot to the touch with just a glance. Pan size sensor heats the element to the size of your cookware and turns off when no pan is present for safety and more efficient cooking. With induction cooking, heat is generated directly in the cookware, so the cooktop stays cooler to the touch, with child control lock feature prevents unintended activation for added safety.

The USA & Canada ETL Certified Electric Stove Induction Cooktop designed and engineered in the USA by Empava Appliances with 2 Years US Based Manufacturer .

Enjoy minimal cleanup with stain and heat discoloration resistant spills can’t burn onto the surface, easy-to-clean vitro ceramic smooth surface glass will provide you with a reliable cooktop for years to come.

The flawless Empava smooth tempered glass surface allows for effortless cleanup, manufactured without the release of hazardous metals into the ground and withstands intense heat without cracking or chipping. Approved for installation over any Empava brand 24 in. under-counter single wall ovens. Most stainless steel and cast-iron cookware are induction compatible.

PROTECT COOKTOP & LENGTHEN LIFESPAN - KitchenRaku Induction cooktop Protector, perfect (Magnetic)induction and Cookware accessories, can lengthen the electric stove burners lifespan and keeping it away form unwanted scratches and stains.

PLATINUM FOOD GRADE SILICONE - Made from specially designed fiberglass coated with food grade liquid platinum silicone (BPA free), reusable, 100% non-stick resistantand heat resistant to 450℉.

COOK SAFELY AND EASY TO CLEAN - The non-slip surface keeps pots and pans from sliding during cooking. The electric stove cover is flexible, durable, easy to clean, dishwasher safe, and easy to store.

🎁【Easy Maintenance】One-piece glass surface allows for wipe clean. No crevices that can hold residue. No afraid of scratches. No need long time to cool.

🎁【Minimize Built-in Design】Gasland built-in electric cooktop provides extra counter space on top and takes up mini space under the counter, due to the minimize width design. Product size: 23.2'' x 20.5'' x 2.2''(590mm x 520mm x 55mm). Cut out size: 22.1'' x 19.3''(560mm x 490mm).

🎁【4 Powerful Cooking Zones】This induction cooktop has 9 power levels, precision to switch into different level from simmer to boil. Sensor touch control, easy temperature control meets various cooking requirements. 4 cooking zones allow cooking 4 meals in the same time. Shorten dinner party preparation time.

【9 Power Levels & 20 Temperature Settings】VBGK sensor touch control electric cooktop has 9 power levels to meet your different choice to cook a variety of different foods, perfect for braise, fry, simmer, steaming, boil, stir-frying, roast. The electric burner has 20 temperature settings, ranging from 80°C to 650°C. Suitable for 110-120V, (Plug included).

【Dual Powerful Cooking Zone】This 12'' electric stovetop is equipped with two independent heating zones, allowing you to set each heating zone separately using the LCD display. Independent power 1200W+900W, which can quickly cook 2 dishes of delicious dishes at the same time, saving a lot of time.

【Safety Double Burner Electric Cooktop】 VBGK 2 burner electric cooktop is equipped with a child safety lock, timer and overheat protection device, and the round edges without sharp corners. Set the timer from 1 minute to 120 minutes. Just set the power setting and timer, then let the electric stove top do the rest, and you can enjoy the leisure time and its excellent cooking performance.

★Excellent Capability With Upgraded Version Booster Function - 30" electric induction cooktop offers 9 adjustable levels of heat from simmering to boiling. It could meet your diverse cooking needs. This induction cooker total power is 6800W. Top Left: 1200W BOOSTER:1500W, Middle:2400W BOOSTER:2600W, Down Left: 1800W BOOSTER:2000W, Down Right: 1200W BOOSTER:1500W.

★Safe & Secure -The IsEasy cooktop stove electric has the over heat protection, which the hob will automatically turn off when the stove temperature crosses the safe level, and a hot surface warning indicator which will display an “H” while the surface is still hot.

★Multiple Function -IsEasy cooktop 36 electric is a good partner for cooking. The timer of 1-99min makes cooking a pleasant leisure time. Besides, This cooktop has residual heat indicator and child lock function. It could perfectly solve the problems you may meet in cooking.

The USA & Canada ETL Certified Electric Stove Induction Cooktop designed and engineered in the USA by Empava Appliances with 2 Years US Based Manufacturer Warranty.

The flawless Empava smooth vitro ceramic glass surface allows for effortless cleanup, manufactured without the release of hazardous metals into the ground and withstands intense heat without cracking or chipping. Approved for installation over any Empava brand 24 in. under-counter single wall ovens. Most stainless steel and cast-iron cookware are induction compatible.

Hot Surface indicator - An "H" will appear in the surface cooking area display let you know when elements are hot to the touch with just a glance. Pan size sensor heats the element to the size of your cookware and turns off when no pan is present for safety and more efficient cooking. With induction cooking, heat is generated directly in the cookware, so the cooktop stays cooler to the touch, with child control lock feature prevents unintended activation for added safety.

Product Dimensions: 36 in. W x 21 in. D x 2.12 in. H, Cutout Dimensions: 35.22 in W x 19.87 in D. Minimum circuit breaker amperage 50A, 240V hard wiring included, Designed and Engineered in USA with 2 Years US Based Manufacture Warranty.

Two 15 in. x 8 in. Flexi bridge burners allow you to control two heating elements simultaneously to evenly heat large cookware or griddles up to 11,000 Btu/s with booster. It's good for oversized cooking. The auto shutdown features will protect you if you forget to turn off.

This Empava Induction cooktop features an 11 in. center element up to 13,000 Btu/s, Two 8 in. burners up to 9,000 Btu/s each, Two 7 in. burners up to 7,000 Btu/s each in Power Boost Mode up to 5 minutes. Compatible to install above any Empava 24/30 in. under-counter single wall oven.

The USA & Canada ETL Certified Electric Stove Induction Cooktop designed and engineered in the USA by Empava Appliances with 2 Years US Based Manufacturer Warranty.

The flawless Empava smooth vitro ceramic glass surface allows for effortless cleanup, manufactured without the release of hazardous metals into the ground and withstands intense heat without cracking or chipping. Approved for installation over any Empava brand 24 in. under-counter single wall ovens. Most stainless steel and cast-iron cookware are induction compatible.

Hot Surface indicator - An "H" will appear in the surface cooking area display let you know when elements are hot to the touch with just a glance. Pan size sensor heats the element to the size of your cookware and turns off when no pan is present for safety and more efficient cooking. With induction cooking, heat is generated directly in the cookware, so the cooktop stays cooler to the touch, with child control lock feature prevents unintended activation for added safety.

4 high power burners: 2300/3000W (11in) +1800/2100W (9in)+1200/1500W (7in)+1200/1500W (7in). Supplied with 4 feet (1.22 m) power cable, suitable for AC 240V, rated power 7200W for faster heating up and quick cooking. 4 cooking zones with different power and size meet your multi cooking demand

4 protection features: over-heating protection, residual heat indicator, auto shutdown, and child safety lock. Suit for all cast iron cookware, make your cooking easy and enjoyable. An additional smart pot induction function helps you confirm whether the cookware you use is suitable for the induction cooktop.

9 power setting for precise heating, perfect for braise, fry, deep fry, stir-fry, roast, and even boil water. Slider Sensor touch control is easy to use for all family members. 1 to 99 minutes timer, just set the power setting and timer, then let the electric stovetop do the rest, and you can enjoy the leisure time and its excellent cooking performance.

Separate Cooking Zones: Our induction cooktop is suitable for 110V, featuring 2 independent cooking zones with a total power of 2600W. With the 23.2 x 13.8-inch cutout size, this cooktop adopts a built-in design, convenient for you to install and saves your kitchen space.

Digital Sensor Touch Controls: Our built-in electric stovetop has 9 heating power levels. With a 140-518℉ temp range, it allows you to precisely switch into different levels from boil to simmer. The boost function is well-designed for rapid heating up to 518℉ within 3 minutes. The pause key can stop the heating process immediately. In addition, the 1-99min timer is equipped. Set the power and timer and let the cooktop do the rest. This panel is ideal for achieving accurate cooking effects.

Premium Material: The surface of our induction cooktop is made of ceramic glass, ensuring that it is heat-proof and easy to clean. Besides, the sturdy body with a ventilation system has excellent heat dissipation and is durable for long-term usage. This cooktop is your best choice for a high-quality cooking experience.

POWERFUL AND PRECISE 9 power levels per cooking zone will be perfect to make any kind of meals from simmering to roast which will be one of the important decisions to buy this raised. Rating Voltage is 110-120V, 50/60Hz with maximum power output of 1800 Watt. This cooktop have US 110-120V power plug.

FREE STANDING Two burners ULTRA SLIM induction portable electric built-in stove top with scratch-resistant ceramic glass top. Can be used only as free standing.

NORTH AMERICAN NORM German designed / developed K&H cooktop from Kitchen and Home.

The USA & Canada ETL Certified Electric Stove Induction Cooktop designed and engineered in the USA by Empava Appliances with 2 Years US Based Manufacturer Warranty.

The flawless Empava smooth vitro ceramic glass surface allows for effortless cleanup, manufactured without the release of hazardous metals into the ground and withstands intense heat without cracking or chipping. Compatible to install above any Empava 24/30 in. under-counter single wall oven. Most stainless steel and cast-iron cookware are induction compatible.

Hot Surface indicator - An "H" will appear in the surface cooking area display let you know when elements are hot to the touch with just a glance. Pan size sensor heats the element to the size of your cookware and turns off when no pan is present for safety and more efficient cooking. With induction cooking, heat is generated directly in the cookware, so the cooktop stays cooler to the touch, with child control lock feature prevents unintended activation for added safety.

【110v Electric Cooktop with Plug】Cooksir 2 burner electric stovetop is 110-120v, its voltage is suitable for American households. This electric cooktop comes with a 3-pin American plug that can be plugged into the socket and used directly. There is no need to worry about wiring issues, nor do you need to hire an electrician specifically. Its small size makes it very convenient to move and store, even if there is a socket and a table to start cooking.

【Countertop & Embedded Electric Stovetop】Portable electric cooktop 12 inch with plug can be placed on a table or installed with an opening embedded, freely designed according to your preferences. There are 4 small foot pads in the package, please remember to install them with a screwdriver first. The countertop can be placed to shift position at any time. Embedded installation has a modern decoration style, beautiful and space saving, but you should pay attention to the opening size.

【Easy and Safe Electric Cooktop】Cooksir stovetop electric adjusts the power level through a knob, without too many icons, making it very convenient to operate. It is suitable for the elderly and people with poor eyesight. It has safety functions such as residual heat indication and over-temperature protection. When the temperature of the furnace surface is too high, the digital screen next to the knob will display "H". At this time, be careful not to let your hands approach the furnace surface.

【Easy to Install Electric Cooktop】Doumigo 36 inch 5 burners cooktop is easy to install. Product size: 36'' x 21'' x 2.1''. Cut out size: 35.2'' x 19.9''. It is suitable for 240V 60Hz. You can find out the installation guide in the manual or contact us anytime.

【Easy Clean & Touch Control Surface】This induction cooktop has the Vitro ceramic smooth surface glass, and premium mirror-like countertop burners surface, making it very easy to clean up just by a lightly rub. However, the touch control sensor is also sensitive enough, even if there was water on the surface!

【Heats up Fast/Boost 5 Burners Electric Stove】9 levels of power and temperature and boost setting, center burner range from 2400W to 3700W, front left burner↙ range from 1600W to 2000W; rear left burner↖ to range from 1600W to 2000W; front right burner↘ range from 1800W to 2400W; rear right burner range from 1800W to 2400W. Total power up to 9600W meets your various cooking needs.

【110V-120V Plug in Electric Cooktop】This portable electric cooktop is suitable for 110-120V and meets the American household standard voltage. It is plug and play, and you don't need to spend more money to find an electrician to help with wiring. The power of the electric cooktop 2 burners is 1400W and 600W respectively. The heating speed of the large burner will be faster, while the small burner is generally suitable for insulation.

【Electric Cooktop with Knob Control】This 110V electric cooktop is controlled by two knobs, each controlling a burner. It is very simple to use, and it is easy for elderly and children to learn how to use it. Especially for the elderly, their strength is not good, and the knob type electric stove is more suitable for them than the sensor touch control electric stove. If you don't need too many features and prefer simplicity, you can choose this knob controlled electric stove.

【Drop-in Electric Cooktop & Countertop 】This is a portable electric stove top because you can install the bottom bracket at its bottom, and you can use it on the countertop without spending time cutting holes to install it, which is very convenient. Of course, if you have a suitable size hole in your kitchen, you can install the 12'' electric cooktop embedded. Built-in electric cooktop can save space and overall look more beautiful and elegant.

【110V Electric Cooktop Plug in】This plug in electric cooktop is suitable for 110-120V and meets the American household standard voltage. It is plug and play, and you don't need to spend more money to find an electrician to help with wiring. The power of the electric stove two burners is 1400W and 600W respectively. The large burner has 1~9 adjustable heat levels, the small one keep warmer has two, "L" means low and "HI" is high.

【Countertop and Built-in Electric Cooktop】This is a portable electric cooktop because you can install the bottom bracket at its bottom, and you can move it at any time without spending time cutting holes to install it, which is very convenient. Of course, if you have a suitable size hole in your kitchen, you can install it embedded. Drop-in electric cooktop can save space and overall look more beautiful and elegant.

【Multi functional electric ceramic cooktop】This 12'' inch electric cooktop is equipped with many advanced features, such as a 99 minute timer, automatic shutdown, child safety lock, high temperature warning, pause function, overheating protection function, using these functions can make your cooking easier.

【Portable Electric Cooktop 110v~120v】This portable electric stove is suitable for 110~120v voltage, which conforms to the American family standard voltage. It has a plug, which can be used when plugged into a family socket.The single burner electric cooktop is small in size, light in weight and easy to store and carry. Suitable for use at home, camping, RV and other places. Electric stove top size:2.55x11.02x14.17inch

【Multi-function Electric Ceramic Cooktop】This 110 volt kitchen stove is equipped with various safety protection functions, such as timer, automatic shutdown, child safety lock, residual heat indicator, overheat protection, etc. Using this countertop stove can make your cooking more relaxed and pleasant without worrying about safety.

【1800W Fast Heating Electric Hot Plate】The portable cooktop has 9 power levels (200W-1800W) and 9 temperatures (250 ° F~1100 ° F) to be adjusted. You can use the portable burners for cooking easily, such as meat, summer, steam, boil, dry, fast, heavy, fast heat. The maximum power of this single electric burner is 1800W, and the heating speed is very fast. The heating effect of the ceramic cooktop is the same as that of gas stoves, and the food made is as delicious as gas stoves.

Product Dimensions: 11.34 in. W x 20.47 in. D x 2.20 in. H, Cutout Dimensions: 10.63 in W x 19.69 in D. Minimum circuit breaker amperage 20A, 240V hard-wiring included, Designed and Engineered in the USA with 2 Years US Based Manufacturer Warranty. ETL, CETL and FCC Certified.

Empava 2-burner cooktop come with 2 high power burners of 1800W+1200W for heating up faster and quick cooking. The AC 220-240V hard-wired ceramic stove comes without plug

The Empava electric cooktop is equipped with advanced digital sensor touch controls，which can help to easily control the ceramic hobs heating accurately and brings a sense of luxury to your kitchen. This sensor touch control electric cooktop has 9 power levels, which is very suitable for frying, grilling and other cooking methods that require temperature control.

【Sleek Induction Cooktop】Sleek black finish, compact and built-in design it is, the ECOTHOUCH 2 burner induction cooktop offers you the perfect option of attractive look for any small counter top and kitchenette. The featuring built-in design and black smoothtop vitro ceramic surface saves valuable counter space and trouble of cleaning up after daily use.

【Powerful Induction Cooktop】The ECOTOUCH electric induction cooktop is applied with 2 cooking zones 1800W (max) & 2400W (max), which coverts electricity into precise magnetic field, thus heat will be generated evenly on the cookware itself. No open flame or extra heat radiation, the electric induction cooktop provides excellent fast heating performance and energy efficiency. Booster function saves time waiting when you try boiling water or stir fry.

【Precise Induction Cooktop】The induction cooker offers 9 power setting for precise heating, achieved by sliding sensor touch control. So you get dedicated heating as you wish, from gentle simmer to rapid boiling. The best part is you get direct power level buttons on the panel, instead of changing step by step, heating adjustment on the panel and direct response on the cookware instantly.

Product Dimensions: 35.43 in. W x 20.47 in. D x 2.20 in. H, Cutout Dimensions: 34.25 in W x 19.29 in D. Minimum circuit breaker amperage 50A, 240V hard-wiring included, Designed and Engineered in the USA with 2 Years US Based Manufacturer Warranty. ETL, CETL and FCC Certifiediring included, Designed and Engineered in the USA with 2 Years US Based Manufacturer Warranty. ETL, CETL and FCC Certified

Two 15.75 in. x 7.48 in. Flexi-bridge burners allow you to control two heating elements simultaneously to evenly heat large cookware or griddles up to 3600W with the booster. It's good for oversized cooking. The auto-shutdown features will protect you if you forget to turn it off.

This Empava Induction cooktop features an 11 in. center element up to 3,000W, Two 7.48 in. burners up to 2,000 W each, Two 7.48 in. burners up to 2,600 W each in Power Boost Mode up to 5 minutes. Compatible to install above any Empava 24/30 in. under-counter single wall oven.

【Dual Heating Zones】1800W Duxtop induction and infrared cooktop features two independently controlled cooking zones, allowing you to simultaneously prepare two dishes and save valuable time in the kitchen.

【Temperature & Power】The left induction burner features 20 adjustable temperature settings and power levels, providing precise control to accommodate a range of cooking needs. The right electric stove offers 15 adjustable power levels, ensuring that you can achieve the desired heat for your dishes.

【Compatible with All Cookware】Infared cooktop is compatible with all types of cookware that have a maximum size of 8.7 inches. For the left induction burner, please ensure that the cookware has a magnetic bottom with a minimum diameter of 5 inches.

USA and Canada ETL certified electric stove induction cooktop by Empava appliances with 2-years US based manufacturer warranty

Product dimension 23-5/8 in W x 20-1/2 in D x 2-5/16 in H, cutout dimensions 22-1/16 in W x 19-5/16 in D

Hardwired- 3 copper wire cable from home power supply, 220~240 Volts, 40 amps breaker

Product Dimensions: 30.31 in. W x 20.47 in. D x 2.20 in. H, Cutout Dimensions: 29.53 in W x 19.69 in D. Minimum circuit breaker amperage 50A, 240V hard-wiring included, Designed and Engineered in the USA with 2 Years US Based Manufacturer Warranty. ETL, CETL and FCC Certified

Two 15.75 in. x 7.48 in. Flexi-bridge burners allow you to control two heating elements simultaneously to evenly heat large cookware or griddles up to 3600W with the booster. It's good for oversized cooking. The auto-shutdown features will protect you if you forget to turn it off.

This Empava Induction cooktop features Two 7.48 in. burners up to 2,000 W each, Two 7.48 in. burners up to 2,600 W each in Power Boost Mode up to 5 minutes. Compatible to install above any Empava 24/30 in. under-counter single wall oven.

USA and Canada ETL certified electric stove induction cooktop by Empava appliances with 2-years US based manufacturer warranty

Product dimension 30 in W x 21 in D x 2-5/16 in H, cutout dimensions 28-3/4 in W x 19-5/16 in D

Hardwired- 3 copper wire cable from home power supply, 220~240 Volts, 40 amps breaker