Best 120Vac To 12Vdc Transformer 20 Amp in 2022 [*Top Picks*]

Looking for the best 120vac to 12vdc transformer 20 amp on the market? We’ve got you covered. Check out our ratings of absolute bestsellers below and make a final decision.

5722 Reviews Scanned

  • ALITOVE DC 12V 20A 240W Power Supply Transformer Switch AC 110V / 220V to DC 12V 20amp Switching Adapter Converter LED Driver for LED Strip Light CCTV Camera Security System
    Bestseller #1
    ALITOVE DC 12V 20A 240W Power Supply Transformer Switch AC 110V / 220V to DC 12V 20amp Switching Adapter Converter LED Driver for LED Strip Light CCTV Camera Security System (1046)
      Input: 110V/220V AC; Output: DC 12V 20A max. Output voltage is adjustable 15%. Three sets of output Channel. Safety features: Automatic overload cut-off, over Voltage cut-off, automatic thermal cut-off, short circuit protection. Voltage consistency: There is no voltage fluctuations to speak of at power on, during transmit, receive, or at power off. There is no fan inside the case, silent running. Metal case with many holes makes heat dissipation more efficient. Great for LED Strips, 3D Printer, ham radio transceiver, CCTV cameras ,car subwoofer amp, audio amplifier, wireless router, ADSL Cats, HUB, audio/ video power supply. Indoor use only!
  • SHNITPWR 12V Power Supply 30A 360W AC to DC Adapter 12 Volt 30 Amp Switching Power Converter Transformer LED Driver 110V 240V AC in for LED Light Strip 3D Printer CCTV Security System LCD Monitor
    Bestseller #1
    SHNITPWR 12V Power Supply 30A 360W AC to DC Adapter 12 Volt 30 Amp Switching Power Converter Transformer LED Driver 110V 240V AC in for LED Light Strip 3D Printer CCTV Security System LCD Monitor (510)
      Universal switching mode power supply. Input: AC 110V / 220V, 50 / 60Hz ; Output: DC 12V, Max 30A, 360W. The default output voltage is 12V DC, but it can be regulated by 15%, from 10.2V to 13.8V. Three sets of output channels available. It can supply with all amperage less than 30A. ---such as 1A, 2.5A, 10A, 18A, 20A, 30A. For example, if your device draws 25A, then 25A will be supplied. If draws more than 30A, only 30A will be supplied and power supply will be damaged soon. NEVER OVERLOAD ! Certified by FCC CE ROHS. We focus on producing high quality power adapters. No noise, low temperature operation, no spontaneous combustion, no explosion, no fire hazard, stable output. Automatic overload cut-off, over voltage cut-off, automatic thermal cut-off, short circuit protection. It is perfect for 5050 3528 12V LED Strip Light, Wireless Router, ADSL Cats, HUB, Security Cameras, Audio/ Video Power Supply, 3D Printer, LED Driver, CCTV Security System, LCD Monitor, Webcam Router and other 12V devices less than 360W. There is built-in cooling fan, which makes heat dissipation more efficient. 30 days money back guarantee, 18 months exchange. If there is any issue, please feel free to contact us. We will happily accept the return and give you refund.
  • ALITOVE AC to DC Converter 110V to 12V Converter 20.8A 250W with Car Cigarette Lighter Socket 100V~240V AC to DC 12 Volt 20A 18A 15A Power Supply Adapter for Car Refrigerator Tire Inflator Cleaner
    Bestseller #1
    ALITOVE AC to DC Converter 110V to 12V Converter 20.8A 250W with Car Cigarette Lighter Socket 100V~240V AC to DC 12 Volt 20A 18A 15A Power Supply Adapter for Car Refrigerator Tire Inflator Cleaner (1046)
      【 Specifications 】 Input: 100~240V 50/60Hz; output: 12V DC, 20.8A 250W max; Works well with car devices that draws less than 20.8A, such as 5A, 8A, 10A, 12A, 13A, 15A, 16A, 18A, 20A, 20.8A. Please don’t overload this power adapter over 250W for a long time. Otherwise, the lifespan will be greatly shortened. 11.5ft power cord to reach a wide range. 【 Multiple Safety Protections 】 Built in automatic over voltage protection, over current protection, over temperature protection and short circuit protection. When the load is above 300W, it will stop working and beep. When load is lower than 250W, it will work again. When load is above 660W, the built-in fuse will blow and the power converter will be permanently damaged. 【 Wide Compatibility 】Works with almost all 12V under 250W automotive electronics with cigarette lighter plug, such as air compressor, car tire inflator, coffee maker, car oxygen bar, refrigerator, car TV, car cleaner, car dash cam, car DVR video recorder, car MP3 player, car Bluetooth FM transmitter, car air purifier, car humidifier, car massage cushion, car air fan, etc. 【 Work Quietly, Low-heat Running 】 Built-in a smart silent cooling fan. When the current reaches 8A or higher, the fan will rotate to dissipate heat. This will effectively guarantee continuous working in silence, avoid running overheat and greatly extend its service life. 【 What you will get 】1x 12V 20.8A 250W power supply. 100% quality guarantee, worry-free shopping. 24-month warranty and friendly customer service. We are always stand behind our product. If there is any issue, please contact us, we will reply in 12 hour
  • Anbull 800W SMPS 110V AC to 12V DC Converter Power Supply Adapter Switch Transformer Max Current 66.7A
    Bestseller #1
    Anbull 800W SMPS 110V AC to 12V DC Converter Power Supply Adapter Switch Transformer Max Current 66.7A (294)
      Dual input voltage: AC 110V-120V / 220V-240V.Wide voltage input adjusted automatically to SMPS Model (12V 1A-5A, 12W-60W). As for Model (12V 10A-66.7A 120W-800W), there is a voltage selector switch located on one side of the switcher that is used to set the input voltage to the power supply to either 110V/120V or 220V/230V. Output current depends on the device, such as 10A 120W, 20A 240W, 30A 360W, and the max current is 66.7A, power 800W. How to choose: The peak power is 66.7A,800W. It does not mean it can fit rate power 800W. For motor devices, the start current will be much higher than the rated power. If use resistive equipment, such as led strips, you can use higher power, such as 800W rated LEDs will also be OK. Dial to the correct gear position cut off the power before disassembling the connection. 3.Safe and Stable, Long Service Life: Switching power supply has over/under voltage, over current, overheat protection, and fan heat dissipation protection functions. Light and Portable, Easy to Operate: Net weight only 1.6Kg. Perfect choice to power led strips, car stereos, CCTV cameras, and other 12V powered systems. How to use:The upgraded transformer has three connection methods to facilitate the use of different devices, super convenient for devices with clamps. You can clamp to the two cylindrical contacts directly. It is a patent design. Dial to the correct gear position, cut off the power before disassembling the connection.At the same time, the four-hole design on the back of the adapter can be used to hang on the wall. Triple protection mechanism: Over/under voltage protection, over current protection, overheat protection.Provide one-year worry-free warranty service, please feel free to contact us for any problems in using. package includes: converter, user manual ,1 year warranty , Notice: does not include battery clips and inverter cables.
  • ALITOVE AC 110V/220V to DC 12V 30A 360W Universal Regulated Switching Power Supply Transformer Adapter LED Driver for LED Strip, CCTV Camera System, Radio
    Bestseller #1
    ALITOVE AC 110V/220V to DC 12V 30A 360W Universal Regulated Switching Power Supply Transformer Adapter LED Driver for LED Strip, CCTV Camera System, Radio (1046)
      Input: 110V/220V AC; Output: DC 12V 30A max. Output voltage is adjustable 15%. Three sets of output Channel. Safety features: Automatic overload cut-off, over Voltage cut-off, automatic thermal cut-off, short circuit protection. Voltage consistency: There is no voltage fluctuations to speak of at power on, during transmit, receive, or at power off. It comes with built-in cooling fan and temperature detector. Cooling fan will not run until the inner temperature reaches 113°F (45℃), which makes heat dissipation more efficient. Great for LED Strips, 3D Printer, ham radio transceiver, CCTV cameras, audio amplifier, wireless router, ADSL Cats, HUB, audio/ video power supply. Indoor use only!
  • SHNITPWR 12V Power Supply 20A 240W AC DC Adapter, 110V / 240V AC to DC 12 Volt 20 Amp Switching Power Converter Transformer LED Driver for LED Light Strip 3D Printer CCTV Security System LCD Monitor
    Bestseller #1
    SHNITPWR 12V Power Supply 20A 240W AC DC Adapter, 110V / 240V AC to DC 12 Volt 20 Amp Switching Power Converter Transformer LED Driver for LED Light Strip 3D Printer CCTV Security System LCD Monitor (510)
      Universal switching mode power supply. Input: AC 110V / 220V, 50 / 60Hz ; Output: DC 12V, Max 20A, 240W. The default output voltage is 12V DC, but it can be regulated by 15%, from 10.2V to 13.8V. Three sets of output channels available. It can supply with all amperage less than 20A. ---such as 1A, 2.5A, 10A, 12A, 18A, 20A. For example, if your device draws 15A, then 15A will be supplied. If draws more than 20A, only 20A will be supplied and power supply will be damaged soon. NEVER OVERLOAD! Certified by FCC CE ROHS. We focus on producing high quality power adapters. No noise, low temperature operation, no spontaneous combustion, no explosion, no fire hazard, stable output. Automatic overload cut-off, over voltage cut-off, automatic thermal cut-off, short circuit protection. It is perfect for 5050 3528 12V LED Strip Light, Wireless Router, ADSL Cats, HUB, Security Cameras, Audio/ Video Power Supply, 3D Printer, LED Driver, CCTV Security System, LCD Monitor, Webcam Router and other 12V devices less than 240W. There is no built-in fan, silent running. Metal case with many holes makes heat dissipation more efficient. It comes without any power cord. 30 days money back guarantee, 18 months exchange. If there is any issue, please feel free to contact us. We will happily accept the return and give you refund.
  • ALITOVE AC to DC Converter 100V ~ 240V to 12V 10A 120W Power Supply Adapter Car Cigarette Lighter Socket AC/DC Transformer for Car Vacuum Cleaner, Car Refrigerator and Other Car Devices
    Bestseller #1
    ALITOVE AC to DC Converter 100V ~ 240V to 12V 10A 120W Power Supply Adapter Car Cigarette Lighter Socket AC/DC Transformer for Car Vacuum Cleaner, Car Refrigerator and Other Car Devices (1046)
      【 Specifications 】 Input: 100~240V 50/60Hz; output: 12V DC, 10A 120W max; Works well with car devices that draws less than 10A, such as 5A, 8A, 10A. Please don’t use this power adapter to power devices over 120W for a long time. Otherwise, the lifespan will be greatly shortened. 8ft power cord to reach a wide range. 【 Multiple Safety Protections 】All the power supplies are put through rigorous quality control procedures to ensure safe, reliable operation for years to come. Built in multiple safety protections, such as overload cut-off, over voltage cut-off, over temperature cut-off, short-circuit cut-off. 【 Wide Compatibility 】Works with almost all 12V under 120W automotive electronics with cigarette lighter plug, such as car refrigerator, car TV, car cleaner, car dash cam, car DVR video recorder, car Bluetooth FM transmitter, car air purifier, car humidifier, car massage cushion, car air fan, etc. 【 What you will get 】1x 12V 10A 120W power supply, 1x power cable. 100% quality guarantee, worry-free shopping. 24-month warranty and friendly customer service. We are always stand behind our product. If there is any issue, please contact us, we will reply in 12 hours. 【Precaution】 Generally speaking, instantaneous starting current of devices with built-in motor (such as car vacuum cleaner and inflator ) is much higher than the rated current. So, we recommend you to buy ALITOVE 12V 15A power supply (ASIN: B08FB377WG ) for 12V 8A~10A car vacuum cleaner and inflator.
  • LED Driver 250W 12V, Waterproof IP67 LED Transformer,LED Power Supply 110V AC to 12V DC Low Voltage Output with 3-Prong Plug 3.3 Feet Cable for LED Light, Computer Project, Outdoor Light
    Bestseller #1
    LED Driver 250W 12V, Waterproof IP67 LED Transformer,LED Power Supply 110V AC to 12V DC Low Voltage Output with 3-Prong Plug 3.3 Feet Cable for LED Light, Computer Project, Outdoor Light (23)
      ◆The Model of LED Driver:Input: 100-265V AC 47-63HZ. Output: 12V DC 20.8A 250W. PF value is greater than or equal to 0.95 which save power and have longer product life ◆Automatic protection of LED Transformer for Short circuit / overload / over voltage / over current / over temperature.Protection type: Hiccup mode, auto-recovery after fault condition is removed ◆Wide Range of LED Power Supply : Suitable for LED strip lights, led light bulbs ,Computer Project,Industrial,Outdoor Light and any 12V DC led lights ◆100% Waterproof IP67 protect for outdoor use.Aluminum metal housing, easy for heat dissipation and ensure stability ◆The LED driver is NOT dimmable, the LED driver is only compatible with RGB dimmers.LED transformer certification: IP67,CE,ROHS SELV etc.If you have any problem of our product, you can click “seller contact” button in your Amazon account to email us. we would be delighted to help you and reply you as soon as we can.
  • Anbull SMPS 110V AC to 12V DC Converter Power Supply Adapter Switch Transformer Max 50A 600W (New Version)
    Bestseller #1
    Anbull SMPS 110V AC to 12V DC Converter Power Supply Adapter Switch Transformer Max 50A 600W (New Version) (294)
      Dual input voltage: AC 110V-120V / 220V-240V.Wide voltage input adjusted automatically to SMPS Model (12V 1A-5A, 12W-60W). As for Model (12V 10A-60A 120W-600W), there is a voltage selector switch located on the side of the switcher is used to set the input voltage to the power supply to either 110V/120V or 220V/230V.Output current depends on the decive, such like 10A 120W, 20A 240W, 30A 360W,and the max current is 50A,power 600W. . How to choose: The peak power is 50A,600W. It does not mean it can fit rate power 600W. For motor device, the start current will be much higher that rate power. If use resistive equipment , such like led strips, you can use higher power, such like 40A rated leds will also be OK. Safe and Stable,Long Service Life:Switching power supply has over/under voltage, over current, over heat protection and fan heat dissipation protection functions.Light and Portable,Easy to Operate: Net weight only 1.2 Kg. Super convenient for devices with clamps. You can clamp to the two cylindrical contacts directly. It is a patent design. Dial to the correct gear position, cut off the power before disassembling the connection. Perfect choice to power led strips, car stereos, CCTV camera,and other 12V powered systems. Protect: Over/under voltage protection, over current protection, over heat protection.
  • AC to DC Converter, RoyPow 180W (Max 200W) 15A 100V~120V to 12V Car Cigarette Lighter Socket AC/DC Power Supply Adapter Transformer for Inflator, Car Refrigerator
    Bestseller #1
    AC to DC Converter, RoyPow 180W (Max 200W) 15A 100V~120V to 12V Car Cigarette Lighter Socket AC/DC Power Supply Adapter Transformer for Inflator, Car Refrigerator (178)
      【Emulate Automotive Batteries】 With reference to the changeable output voltage of the car battery at the Engine-Unstart-State, this ac to dc power supply allows to power most of the automotive electronics with the 11V/12V/13V/14V input voltage. 【Apply to Almost All】 180W (Max 200W) output applies to almost all 12V automotive electronics, such as double-cylinder air compressor / car tire inflator, coffee maker, car oxygen bar, refrigerator, car TV, car cleaner, vehicle power amplifier, 12V electron telescope etc. 【Work Quietly & Low-heat】 Built-in a silent fan to guarantee high efficient heat dissipation, makes it reliable to work in silence and avoid overheat. 【Multiple Safety Protections】 CE & FCC & RoHS approved; Integrated with multiple protections inside to protect against Over Charging, Short Circuits, Over Powering, Over Current, Overheating, Over Discharge, Over Voltage 【What you’ll get】 RoyPow C180 AC to DC Adapter set; Unconditional 30-day money back; 18 Months Warranty; Life-long free technical support.
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