12V 5A Power Supply, Waysse AC DC Adapter, Converter 100-240V to 12 Volt 5 Amp Transformer 5.5x2.1mm Plug for LED Strip Light DVR NVR Security Cameras System

I recently had my previous power supply (a different brand) fail on me, which completely took down my security system. After some research, I decided to try this 12V 5A power supply from Waysse and it solved all my problems instantly. The unit has been rock-solid so far. It easily powers my DVR along with 5 security cameras simultaneously without any instability, drops, or overheating issues. Overall, this adapter delivers exactly what it promises and restored my system to full operation. Highly recommended if you need a dependable replacement power supply for a DVR or multi-camera setup.

This power supply works perfectly with my Zosi camera system. It powers all the cameras with no problem. Great replacement power supply. The connector is the correct size. Use one plug in instead of multiple plug ins for power, saves space on the surge protector.

Works as expected

I use these for my astrophotography setups - I've bought about 6 or 7 of them and one has died after a few months of use. For the price I'm satisfied with that kind of performance especially as the unit had been outdoors during cold damp night and in the sun for several hours on occasion.

Needed this for my under cabinet LED lights. My original device finally died after 4 years of nonstop use. Hoping this one will last just as long. Worked perfectly for me.

It does what you want it to do.

I design industrial electronics and was evaluating this for use in piece of lab equipment. The following discussion is a technical analysis of why this is an unsafe and unreliable product. The TL;DR version is DON'T BUY THIS PRODUCT. It is unreliable and the compliance labels on the back are a COMPLETE LIE. Critical components on the circuit board were left off for the sake of saving a tiny amount of money. Failed after only a few hours of use with a light load (12V @ 500mA). I opened the case top and took the attached photo. I found almost all of the input protection components designed onto the PCB to be missing. The AC comes in on the lower right. There is a missing large rectangular component directly across the mains. I believe this should be an MOV which clamps voltage surges to a safe level. In the shadow of the large capacitor we see a series component RT1, which I believe should be a PTC which limits inrush into the large input cap. Above and to the right there is a capacitor outline which would be the X-capacitor. X capacitors are used to minimize the effects of overvoltage surges, conducted interference, and voltage transients. They are also used to filter EMI from the mains and equipment. This is an important component which was omitted. Finally, in the upper right there is an outline for a CM choke which is jumpered across. This would help filter out the switching noise, and without this and the X-cap, there is simply no way this would pass CE emissions testing. It's no wonder the supply failed. There is only a 2A fuse between the mains and the switching controller, which is a semiconductor device and sensitive to surges and noise, which always exist on mains. Something as innocent as a heater turning off on the same circuit could cause enough inductive surge to kill this supply, which is exactly what happened in my testing. Of course they won't care, but whoever is selling this should be ashamed for leaving these components off. Those safety components are there for very good reasons and should never be omitted.

The power supply for a string of LEDs around our window went out, so I ordered a replacement. It had the exact same specifications of 12 volt DC output of up to 5 amps with a 5.5mm by 2.1 mm barrel connector. It arrived the next day as advertised, the connector fit and it worked perfectly.