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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 Richard Asked:

Hi I want to use your 12V 10A power supply to power a car radio I have in my garage. Is this supply designed to be plugged into a 110V wall receptacle 100 percent of the time, even when the radio is turned off and drawing no power? Also what is the power supply current draw when it is plugged in but not supplying any power? Thanks Richard

Our Technician Answers:

Hi.. The 12V 10A Power Supply is Ideal for powering a car radio at home. Please make sure that the total watt usage of the car stereo is not more than 120W, which is the maximum load possible for this power supply. If the radio is turned off the power usage is almost zero. The power supply only turns on when there is a load on it... So you don't have to worry about the power supply passively using power.

User Ramon Asked:

I have a Relaxzen massage/heat chair, looking for replacement power adapter, any suggestions as to th right one?

Our Technician Answers:

Hi Ramon. I can't do all your research for you in relation to finding the power supply, but I can give you some hints.. The easiest way is to find the old or broken adapter for the device you want to power and look at it for the details. It will have the voltage as well as the amperage printed on it. So if it says 12V, you will need to use a 12 Volt power supply. The voltage has to be an exact match. The amperage will be shown either as A for Amps, or W for Watts. For this, you need to find a power supply that can supply the same, OR MORE, than what the current power supply indicates. So if the old power supply says 2A, you can use a 3A or a 4A, or even higher. If there is no amperage indicated on the old unit, there should be a wattage shown as "W". To get Amperage from Wattage, all you have to do is divide watts by volts. In this case you would divide by 12, So if the 12V power supply is 60 watts, that would be 60 W divided by 12V, which is 5A... So you would need a 5A or higher power supply. The other thing to check on the old power supply is the type of connector. All our power supplies have a standard DC connector. It is a barrel connector with an outside barrel of 5.5mm, and and inside barrel of about 2.5mm. If the old power supply has a non standard connector, square, or multiple pin, then you will need to order the universal power supply we carry, which has a set on interchangeable connectors so you can find one that matches your device. I hope this helps.

User Dave Somogyi Asked:

I just purchased a home siren (DSC SD30W). It claims to need 6-12v DC 1100ma, and it is also referred to as a 30 Watt siren. I can find 12v DC 2amp or greater, but many say max watt output is 24, or don't say at all. What adapter will work for this thing? Thanks

Our Technician Answers:

Hi Dave. If you device is 12 Volt, and it uses 30W (watts), it will need a power supply that can handle a load of 30 divided by 12, which is 2.5A. In this case you can use an power supply of 2.5A or higher. I recommend that you use a power adapter of at least 3A to make sure you are not running it at it's maximum capacity. Let me 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.