Top 10 Adjustable DC Power Supply Kit – AC Adapters

As an Amazon Associate I earn from qualifying purchases.

1. AlloverPower


AlloverPower 3V, 24V 1.5A 36W Universal Adjustable DC Power Supply Kit AC Adapter Speed Control Volt Display ON Off Switch with Variable 8 Plugs

AlloverPower #ad - Won't work on computer!!! All-in-one adapter - fit 90% of ac/dc home & outdoor appliances, widely use in multiple devices. Input: ac 100-120v, output: dc 3v - 24V, 1. 5amax. Adjustable and visable display voltage, can be adjusted the voltage from 3V - 24V through the display. Special buit-in power on/off switch, more convenient and easy to control the adapter with this function. Come with 8 plugs, Fit for power supply needs in different Devices.
BrandAlloverPower #ad
ManufacturerAllover Power Supply #ad
Weight0.66 Pounds

2. Belker


1A Max. BN, Belker 12W 3V 4.5V 5V 6V 7.5V 9V 12V Adjustable Voltage Universal AC/DC Adapter Power Supply for Household Electronics

Belker #ad - Ac input: 100v 120v-240v 50/60hz, output: multi voltage dc 3v 4. 5v 5v 6v 7. 5v 9v 12v 1000ma maxcompatible with less than 1 A, like 100ma 200ma 500ma 800ma amps. This adapter is with 8 different size adapter plugs which fit for your electronics well and solve your various problems.

Package included: 1 x power adapter, 1 x switch key, 1 x DC plugs kit, 1 x manual, 1 x 12-month global warranty. Important note: the adapter dc plug polarity is center positive "+". Search "b07pmhmpmp" to find the cable on Amazon. If your device is with centre negative polarity "-", please use it with Belker polarity reversed cable together. Please ensure it is same with your devices before buying. This ac/dc adapter can apply to most appliances which the input voltage is between 3V and 12V and the rating power is equal to or less than 12 Watt.
BrandBelker #ad
ManufacturerBelker #ad
Part NumberPA-30120W-ZMX

3. HiLetgo


HiLetgo 0-30V 2mA-3A Adjustable DC Regulated Power Supply DIY Kit Short with Protection

HiLetgo #ad - Adjustable dc regulated Power Supply DIY Kit. Input voltage: 24V AC. Input current: Max 3A. Output voltage: 0-30V continuously adjustable. Output current: 2mA-3A continuously adjustable.
BrandHiLetgo #ad
ManufacturerHiLetgo #ad
Part Number3-01-1186



DC Power Supply Module DIY Adjustable AC Constant Current 15-24V to DC 0-30V 2mA-3A Converter Module, Regulated Power Supply Kit

DONGKER #ad - Current conditioning connect the load resistance to the output point, for example, build up the voltage to 1V slowly, turn on the device, 10ohmmake sure there is enough power, rotate the current potentiometer counterclockwise till the LED begin to emit light, and the current potentiometer set at its max and the voltage potentiometer at its min, at which point the current of the circuit is limited at 0.

1a and the position could be marked. Shop with confidence: to provide you with the highest quality Service, If You Have Any Question, Please Feel Free to Contact Us. We will provide after-sales Service Until You Are Satisfied. Voltage conditioning turn potentiometer P1 to the minimum, and then adjust the RV1 potentiometer, Make the output voltage is 0V.

For example, if the load of 10ohm is used, 20V, I=3A max output. You could substitute other load resistance with different values, but please make sure there is enough power and cooling. Adjust to 2v, and you could calibrate different input current, 30v successively, 5v, 10V, and u at 30v, the formula is:I=U/R.
BrandDONGKER #ad
ManufacturerDONGKER #ad
Weight0.12 Pounds
Part NumberFBM0-AAQ-12479

5. IndustrialMaker


DIY Kits LM317 Adjustable Voltage Regulator AC-DC 110V to 12V Step Down Power Converter Transformer Supply Module US Plug Case

IndustrialMaker #ad - Developed country estimated delivery time: 7-18 days by special line. 10-30 days for other country. We provide expedited Shipping service : 3-8 days. Excluding handling time. If the order amount above US $200, we will use Expedited Shipping service for free. Diy kits lm317 adjustable voltage regulator ac-dc 110v to 12V Step Down Power Converter Transformer Supply Module US Plug Case.
BrandIndustrialMaker #ad
ManufacturerIndustrialMaker #ad
Part NumberIM_module_10457

6. IS


Icstation LM317 1.25-14.5V Adjustable DC Power Supply Voltmeter Assemble Kit DIY Power Converter Digital Display with Acrylic Shell

IS #ad - Good qualitywith 2mm thick acrylic shell, solid and practical, beautiful, perfect matching the this power supply voltmeter. Voltage measuring functionwith two alligator clip, you can test the voltage of any point of the external module.

On-off testwith a 5v buzzer, you can test whether the wires are connected. Input power supply is 220 VC. The buzzer will ring if the wire is connected. Connect the signal wire to the signal input port, the buzzer will ring if there is signal. You can also test low frequency signals. Connect the wire to the positive pole of the power supply and the signal input.

Wide output power rangeadjustable from 1. 25v to 14. 5v, and the output voltage is much larger than the common power supply. This power converter also support logic pen signal input. Digital voltage displaythis is a particularly practical power pack that switches the voltage display or voltmeter function freely by twisting the voltage knob.
BrandIS #ad
ManufacturerIcstation #ad
Weight0.64 Pounds
Part NumberLM317



Suitable for 3V to 12V Household Electronic Products and LED Strip, GZSZSBT 30W Universal AC/DC Adapter Multi-Voltage Regulated Switching Power Supply, 2A Max, with 8 Optional Adapter Plugs

GZSZSBT #ad - Note: the polarity of the 30w adapter dc plug is the positive "+" in the center. 5. 5mm*2. 1mm dc power cord connector plug, convenient and practical to connect. Powerful adapter: variable voltage is easy for you to choose, you can use the provided keys to easily convert to different voltages.

Universal ac/dc adapter: ac input: 110-240v, comprehensive protection against over-voltage/over-current/short-circuit/over-temperature, DC output: 3V/4. 5v/5v/6v/7. 5v/9v/12v-max 2a 2000 mA. Before buying, make sure it is the same as your device. If the negative pole of the center of your device is "-", please use a cable with the opposite polarity. Support dc 12v-2a or 12V-1. 5a electrical appliances. It is safe to operate, 1 x manual, 1 x 12 months global warranty. 30w multifunctional adjustable charger, and easy to connect the adapter plug. This replacement power adapter provides 8 interchangeable adapter plugs of different sizes, 50-60Hz, which is very suitable for your electronic products and solves your various problems.

Product includes: 1 x power adapter, 1 x dc plug kit, 1 x switch key, easy to set the correct voltage, you can choose different sizes of output and different voltage levels.8-in-1 adapter: gzszsbt 30w replacement ac adapter is suitable for 95% of ac/dc home appliances, USB rechargeable camera, such as 3V to 12V home electronics, routers, tablets, LED strips, scales, CCTV camera systems, speakers, etc.
BrandGZSZSBT #ad
ManufacturerShenzhen Waweis Technology Co.,Ltd #ad
Height1.4 Inches
Length3.2 Inches
Width2 Inches

8. Belker


Belker 36W Universal 3V 4.5V 5V 6V 7.5V 9V 12V AC DC Adapter Power Supply for LCD LED Light Strip Router HUB Speaker Smart Phone TV Box 1A 1.5A 2A 2.5A 3A 3000mA Amp Max.

Belker #ad - 3. 0a. This ac adapter polarity is inner positive+, outer negative-. This replacement power adapter offers 8 interchangeable tips, scales, tablet, routers, CCTV camera system, which makes it fits 95% of AC/DC home appliances, LED Strip Lights, speakers, usb charging camera, Such as 3V to 12V Household Electronics, USB powered devices and more.

This power supply is a versatile adjustable adapter, 12v 1a 2a, max. Package content: 1 x universal ac dc adapter, 1 x Plugs kit, 1 x Switch key. Search "b07pmhmpmP" on Amazon. Support 5v 3a, 9v 3a, 6v 3a, replace those adapters less than 36W like 5V 1A 2A 2.1a, 12v 3a and more. 1 x user Manual. If your device is with center negative polarity "-", please take a Belker polarity reversed cable. Ac input: 100-240v 50/60hz 1. 0a, dc output: volt 3v 4. 5v 5v 6v 7. 5v 9v 12v - amp 05a 1. 0a 1.
BrandBelker #ad
ManufacturerWestronix #ad
Part NumberBK-Manual-36W



AC 110V/220V to DC 0-48V 10A 480W Buck Converter, DROK 48V Power Supply, Adjustable Variable LED Adapter Regulated 5V 12V 24V 30V 36V 48V Volt Voltage Transformer 10A Amp Charger for Lab CCTV Radio

DROK #ad - But the actual current is depended on the load. Make sure to use the devices which is below 10A. Note: the default input voltage is 220v, over voltage Protection, Short Circuit Protection, before using, please switching the input voltage to 110V/220V according to your city voltage.

This supply is suitable for 5v 9v 12v 24v 30v 36v 48v devices. Easy operation this supply is no need to install, after connecting wire, it can be used to adjust output, which is convenient. Wide application this power supply has variable application. Only to rotate the potentiometer can adjust output parameter. It can be used as a 5v 12v 24v 30v 36v 48v power supply for RV, Labtop, Lab, CCTV, Computer, Car, Ham Radio, etc.

Note——the maximum current is 10A. It can be used to device of 2A 3A 5A 10A. During the running power is high, the cooling fan will automatically activate with little noise. Wide adjustable output voltage range: dc 0-48v. The led screen can clearly display the output voltage. All of our item has one year long time warranty guarantee. The potentiometer is inset into the supply.
BrandDROK #ad
ManufacturerDROK #ad
Height1.97 Inches
Length8.46 Inches
Weight1.94 Pounds
Width4.45 Inches
Part Number200570



SHNITPWR 3V ~ 24V 3A 72W Power Supply Adjustable DC 3V 5V 6V 9V 12V 15V 16V 18V 19V 20V 24V Variable Universal AC/DC Adapter 100V-240V AC to DC Converter with 14 Tips 5.5x2.5mm 4.0x1.7mm 3.5x1.35mm

SHNITPWR #ad - We always stand behind our products. Built-in multiple safety protection systems. Wrong voltage may damage your device.

The 72w all-in-one multipurpose ac/dc adapter fit for many 3~24v small household electronics such as led strips, digital photo frame, smart speaks, under-cabinet light, wireless routers, USB Hub, USB fan, hard disk box, Wifi camera, TV Box, essential oil diffuser humidifier, DC pump, DC motor, DVR NVR surveillance system etc. You can screw wires onto it easily, 3. 5x1. 35mm, 2. 5x07mm, 4. 8x1. 7mm, micro-USB, 4. 0x1. 7mm, 5. 5x2. 1mm, 5. 5x1. 7mm, 3. 0x1. 1mm, 6. 3x3. 0mm, 5.
ManufacturerSHNITPWR #ad
Weight0.66 Pounds
Part Numbereggreh-001
Warranty1 year