Need a reliable 5V power source? This amazing switching power supply offers a stable and clean 5V output at up to 4 Amps (4000mA). It supports both 110V and 240V input, making it suitable for use in any country. The plugs are US 2 - prong style. You might need a plug adapter, which you can easily get at any hardware store for about $1, or buy a 'figure - 8' cable for your country from electronics or hardware stores. The cable ends with a standard 5.5mm OD, 2.1mm ID positive tip connector and can be paired with our 2.1mm extension cord, female terminal block adapter, breadboard - friendly DC jack, etc. It's perfect for RGB LED Matrices, NeoPixels, RGB LED pixels, or addressable LED strips. However, it's not suitable for powering an Arduino through the DC jack as it requires at least 7.5V. Check out our 9V adapter instead! Some customers were confused by the label that seemed to say '.4A' instead of '4A'. There's a comma in front of the 4 that looks like a dot, and it's truly a 4A supply.


Using this power supply is easy. First, make sure you have the right plug adapter or 'figure - 8' cable for your country. Then, connect the power supply to a 110V or 240V power source. The output cable with the standard 5.5mm OD, 2.1mm ID positive tip connector can be connected to your device, like RGB LED Matrices. Note that this power supply won't work for powering an Arduino through the DC jack as it needs at least 7.5V. When it comes to maintenance, keep it in a dry and cool place. If you see any damage to the cable or the power supply itself, stop using it immediately and replace it. Also, don't overload the power supply by using it with devices that draw more than 4 Amps of current.