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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 Kit Autry Asked:

Had a fire 3 yrs ago and just retained a couple of 500 GB External hard drives but, no AC adapters. The first one is, a SeaGate DeskTop 12V output, 2AMP 3.0 USB. P/N 9ZH9P77-RAA. With an, SS computer plug on it The second one is a Western Digital, MDL: WD5000D032-000. I know that it is 12V But not sure if it is a 2 AMP or a 3 AMP. it has, what appears to be, 3 plugs. One computer and , 2 fire wire. The DC plugs are differant size per each model or P/N. If you could help me figure this out? it would greatly appreciated and, I could retain some of the files that were thought to be lost in the fire. Thank you for your time. KA

Our Technician Answers:

Hi Kit. As far as the Amperage and Voltage of power supply, it is simple. They are both 12 Volt, so you can use the same adapter for both. In this case, since one is 2 Amp, and the other 3 Amp, you will use the higher rated one. The 3 Amp, which is the maximum load you can put on the power supply, will work for both. As far as the connector, all our power supplies come with a standard 5.5mm x 2.5mm DC connector. You will see if this matches your device.

User Tom Buehrer Asked:

I am looking for a ac-dc 12v power adapter for a wall mounted Encore AM/FM Cassette recorder/player Model 7677 by Electro Brand. This unit was in a Park Model home that we just purchased, the unit seems good but is missing the 12v power adapter. I believe that it requires to be center pin +, and I think according to what info I have is Part no. 78w. What greatly appreciate any help that I can get, so that I can power up the recorder and check it out. Any brand of adapter is probably OK, as long as the pin diameter and polarity is correct, I believe that the outside diameter of the connector would be 5mm, Many thanks, Tom

Our Technician Answers:

Hi Tom.. It looks like you need a basic 12V Power Supply. For a load of 78 Watts, you will need to divide the wattage by the voltage, to find out the amperage. In this case it is 78 divided by 12, giving you 6.5A (Amps). You always round up for amperage. So the power supply you need is the Standard or UL Listed 12 Volt, 7 Amp, power supply.

User Al Thomas Asked:

I am trying to find a power supply of 2.5 Amp and only can find 2 Amp or 3 Amp, Can you help me.

Our Technician Answers:

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 as 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 power. Voltage might vary by as much as plus or minus 15%. This will inevitably damage your valuable 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.