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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 mike Asked:

please help I am looking for 2 power units (supply's) for 2 mobile time-lapse vcr recorders (Model name mvcr960) on the back were the plug go it says 12v dc in and sticker on back says DC12V, 2A, 12W They have a sq. 4 pin connecter on vcr units which I have for both, Got them out of a broken computer power boxes. I have tried some 12V DC 1Amps ?watts power supply's that have 2 wire that I use for my cameras but they did not work tried making the 2 wires into 4 and still nothing. Don't know if maybe they needed the full 12 watt and to be wired right. Any help would be great. Thanks for any help You can give. Mike

Our Technician Answers:

Hi Mike. I am not sure what the wiring diagram would be for your DVR units. I know there is a standard 4 pin unit connector that comes with our 5A 4 Pin power supply. Since the 5A unit can power any amp rating UP TO 5A, it will work as far as the load in concerned for your DVR. As far as the connector, I would say it is worth a try... It will most likely be the standard 4 PIN connector, so it should work.

User Sammer Jones Asked:

Hi.. I have an LED light strip I want to power. It says it is 12 Volt 50 watts. Will you Power Supply Work.

Our Technician Answers:

Hi Sammer. Yes, the power supplies we have are ideal for powering an LED light array. All you have to do is hook us the output of the power supply, to the input of the strip. This is usually a 5.5mm x 2.5mm barrel connector. For a 50 watt load, you would divide that number by the voltage, which is 12V, so you would get 4.16 Amps. With amperage, you will always round up to the next highest whole number, so you will use the 12 Volt 5 Amp power supply. Good luck.

User Patrick Dalton Asked:

I need to replace an AC Adaptor. model: MW48-1200750 Input: 120V AC 60Hz 22W Output: 12V DC 0.75A negative polarity class 2 transformer Is the plug size/configuration determined by the voltage/amperage? Do you have a recommendation? thanks

Our Technician Answers:

Hi Pat***. The size and type of connector for a power supply is often determined by the voltage and amperage. For most 12 Volt DC power supplies of less than 10 Amps, the standard connector is a Barrel type 5.5mm x 2.5mm connector. This covers the vast majority of power supplies. For smaller power supplies, being 1A or less, a 5.5mm x 2.1mm barrel is sometimes used. These measurements represent the size of the barrel connector. 5.5mm represents the diameter of the outside barrel, with 2.1mm or 2.5mm is the diameter of the hole inside of the barrel. It is interesting to note that for most power supplies, the 2.1mm and the 2.5mm barrels are interchangeable, meaning that they are close enough in size that either one should work... In terms of Polarity, the standard is that the inner barrel is positive, and the outside barrel negative. All of the power supplies on this site are inner barrel positive. In the rare situation were you have a device were the inner barrel is negative, you can simply cut the wire going to the barrel connector, and reconnect with electrical tape reversed. Please let us know if you have any other questions...

Power Supply News and Information

Not ALL Power Supplies are Created Equal.

This article discusses the quality differences between different types of 12 Volt Power Supply Adapters, and how to choose the best one for your application.

Power Supply News

These days, the choice in Power Supply providers is huge. You can order from a supplier within the US, or from one across the planet. You can find power supplies on major chain store web sites and little specialty suppliers. They range in price from as little a few dollars, to fifty or more dollars, but what is the difference between a cheap power supply, and a really expensive one. If you can get a 12 Volt 5 Amp Power Supply for as little as $10, and as much as $70, what is the real difference, and how do you choose. To begin with, it is important to know that not all power supplies are created equal. Real quality differences do exist. The cheapest power supplies on the market can be made with subpar components. They might have low gauge wire that can barely hold the necessary current. They can have resistors and components that can fail within a few hours of use. Even when they don’t fail, some of the cheapest power supplies can put out unsteady levels of energy. Voltage might vary by as much a plus or minus 15%. This will inevitably damage your electronics. The question is this, what is the cost of the power supply failing? Is it worth risking a $1000 screen, or all the data on your hard drive to save $5 on a power supply? And if the power supply fails, what is the replacement cost, what is the down time waiting for replacement of the defective adapter? It is often worth it to spend a little more on a quality component, then risk the damage and replacement cost of a substandard one. Does this mean that a more expensive power supply is necessarily better? Not by all means. Sometime the same power supply is sold for $10 by one supplier and $50 by another. So how do you choose? One thing you can look at is UL listing. If the power supply is UL (or CE) listed, you can be sure that all its components meet a minimum standard of quality. It also means that it receives a higher level of testing. UL listed power supplies are almost always better. Another way you can tell if a power supply is a high quality one is the warranty. Does the supplier offer no warranty, or a short 90 day warranty? That means the supplier does not stand by their product, and has no confidence in it. If on the other hand the supplier offers a one year long or more warranty, it means they are confident enough to assume the cost of unit failure. It is not a total guaranty, but it is a good sign.