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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 Renee Stilwell Asked:

Need an AC adapter for a Bell and Howell DV30HD fun flix camcorder. I have the adapter but I need the usb cord that fits into the ac adapter and the camcorder. Do you know what the part number is for that so I can order it.

Our Technician Answers:

Hi Renee. We are sorry, but we cannot answer questions about specific devices based on brand information. To find the correct power supply you will to find the voltage and amperage of your device. If you don't know the amperage you can also match the wattage. You can look in google foe this info, and then match it to a power supply on our site.

User Dalia Al-Othman Asked:

Hi, I have a Supersonic television here at home (several years old), and the AC ADAPTER that it was sold to me with is no longer working --the wire got old I guess--so i need to buy a new one. Do u sell what i need on your website? The specs of what i need are below, copied and pasted from my current AC Adapter (the one that no longer works): AC ADAPTER MODEL: RS-350/120-S336 INPUT: 100-240V 50/60Hz 1.5A Max OUTPUT:12V=3.5A HAZARDOUS AREA Do Not Remove This Cover Trained Service Personal Only E341852 FC US LISTED MADE IN CHINA Let me know! There are so many AC Adapters for televisions online that i am totally confused. I hope u can help! Best, Dalia.

Our Technician Answers:

We are sorry, but we cannot answer questions about specific devices based on brand information. To find the correct power supply you will to find the voltage and amperage of your device. If you don't know the amperage you can also match the wattage. You can look in google foe this info, and then match it to a power supply on our site.

User John Parenteau Asked:

Just to make sure I've got the ac source wiring correct for the 12v5a-wp power supply, please describe the correct plug connections (on the ac side). Thanks

Our Technician Answers:

Hi John, On the AC side this Universal Power supply has a standard 3 prong AC plug. It is grounded and plugs into a normal USA outlet. On the DC side this power supply has many connectors compatible with most DC devices. This unit is adjustable between 12V and 24V DC.

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.