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Power Supply Adapters for Electronic Devices.

Power Supply Adapters for:

LED Lights   • Hard Drives   • Monitors
Video   •   DC Motors   •   Audio
Any device that requires stable DC power.
High quality Power Supply

Same Day Shipping: Order before 1 PM Eastern time and your order will ship same day!

Standard Power Supply Adapters: 12 Volt DC (12V DC):

These standard 12V Power Supplies are ideal for all home or consumer application. They have a very low failure rate, and are covered by a 1 year warranty.

Standard Power Supply Adapter

UL Listed Power Supply Adapters: 12 Volt DC (12V DC):

These UL listed power supplies recieve the highest level of testing, and are UL certified for
manufacturing quality. They have a 0% failure rate, and come with a 2 year
immediate replacement warranty.

UL Listed Logo
Waterproof Power Supply Adapter: 12 Volt DC (12V DC / Outdoor)
Waterproof 12V Power Supply
Waterproof Power Supply for Outdoor or Humid Environment Use.
This power adapter has a sealed case that allows it to be placed in rainy
environments, humid environment, or other tough environmental conditions.
LED lights/Strips, Signs, Water Pumps, Security Cameras etc...
Power Supply Adapter for LED lights and Strips: 12 Volt DC (12V DC)
Power Supply Adapter for LED lights

This power adapter supplies a constant current, Ideal for all types of
LED based lights, including signs, camera lights, LED strips and many more.

Constant current for stable lighting

Ask An Expert

User David M Bullington Asked:

Need to adaptor 100-240V input,12V out 2.5A

Our Technician Answers:

Hi DAvid.. THat is the standard power supply. LIsted under 12V 2.5A Power supplies on the main page. YOu can select both the UL listed or the Non-UL one.. Both will work for your application.

User John Asked:

I am looking for a replacement power pack for an elliptical and it requires an input of 100-240V (50/60Hz 0.8A) and an output of 12V, 2250mA. The cord that I'm replacing says that it is a "Class 2 Power Supply". Is that something that you can match? Thank you. John

Our Technician Answers:

User John Chidester Asked:

I am looking for a power adapter for a Artco footspa massage chair, it is a 110 12v 100ma adapter, do you have anything that will work, Thank you

Our Technician Answers:

Hello.. 100mA is equivalent to 0.1 Amp. So if you device uses 0.1A, and it is 12 Volt. You would use a 12V 1 Amp Power supply, which can handle all loads UP TO 1A. You just have to make sure that your device uses a standard DC connector, which is a 5.5mm x 2.5mm center positive barrel connector.

Power Supply News and Information

What Is a an AC/DC Power Supply, and What Does It Do?

This article tries to explain the function of an AC/DC power supply by showing the difference between AC and DC current, the two major forms of electrical power that exist today.

Power Supply News


All the 12V Power Supplies you see on 12vAdapters.com, and most other websites serve one single function. They take AC Power (Usually 120V or 240V, or anywhere in between), and transform it to DC power, usually between 12V and 14v. In order to understand this concept, you have to understand the underlying difference between AC and DC electricity. AC and DC are the two existing forms of electricity. AC stands for Alternating Current, and DC stands for Direct Current. As the name implies, DC runs in a single direction and direct line from positive to negative poles. AC on the other hand alternates its motion in one direction, then in the other, usually on a cycle of 50HZ or 60Z. This means that it changes direction 50 or 60 times per minute. While the generator of a DC current has a fixed magnet, and fixed positive and negative poles, the generator of an AC current has a rotating magnet. The rotation of the magnet reverses the relative position of the negative and positive poles 50 or 60 times a second, thus alternating the flow of the electrons in the wire at that rate. Initially both of these systems were in competition for wide adoption. Thomas Edison was a big proponent of DC power, while Westinghouse was pushing the use of AC current. In the end, AC current won because it travels much better over long distances. While DC current can only travel about 1-2 KM over electrical wire until it starts losing voltage, AC current can travel hundreds of KMs at a time. Currently, all household current is AC, but most small devices run on DC, which is the more stable and non-oscillating of the two currents. So what an AC/DC power supply does is that it takes the AC current that travels well all the way to your house, and converts it to DC current, which most electronics and motors run on.