AC-DC SMPS AC110V/220V to DC12V 50A 600W Switched Mode Switching Power Supply (SMPS) Transformer Driver Adapter for LED Strip Light

This looks and feels to be made of average quality. It is much larger than another 12V 10A power supply I have, which will make it easier to repair when it does eventually go pop, but it also doesn't need to be as big as it is. It has no where near the complexity or circuitry of a good quality power supply, but also doesn't cost very much and for now does end up living up to its specs. I expect the capacitors will degrade fairly quickly on this power supply.I performed a series of load tests in 1A increments all the way up to 12A (20% over rating) and the voltage sag was reasonable (~3% max), although not as good as it could be. The sitting voltage was 12.03V, although this is configurable with the potentiometer. In 1A increments the output voltages were: 11.97, 11.91, 11.85, 11.81, 11.78, 11.76, 11.74, 11.71, 11.68, 11.65, 11.64, and 11.62. The full range of the potentiometer produced output voltages from as low as 10.44V all the way up to 15.53V.My power supply came configured for 120V AC input. If you want to use it on 240V inputs, you have to open it up and move the internal switch to the other side.

Running a 3A fan the PSU throttles down after awhile, so maybe too much load. It's been on a very long time, works at about 40% fan speed for my kitchen exhaust fan, so for the price, if you need it just get it.

So far it's been great. I have it running a small cheap Peltier refrigerator unit that I got for a DIY plug in car cooler.I had planned to test out the voltage before using it to make sure everything is fine but I need a new multi meter. I'll try to update later once I've done more with it.

I got the unit and was excited to use it to replace an old unit. I kept looking for a voltage switch to select the correct voltage and could find it anywhere. I assumed it was an auto voltage sensing unit. Sadly I connected it to 220 volts and the unit got fried! Only later I discovered that the voltage selector switch has been covered by a yellow sticker.Why? And why there was nothing mentioned in the document?It was money down the drain.

Eagerly awaited arrival. Put lugs on cables and connected PS. to my Radio. Noticed noise level increase on S meter. Connected to a battery and noise level dropped significantly. I have NOT tried using ferrite beads or capacitors to limit the conductive noise brought in on the Radio power cable. But that will be attempted. Specifications clearly stated EMI (Electro Magnetic Interference) was filtered. Is that to FCC part 15, or China specs... If the manufacturer can't fix these, I'll send em back.

It does work, however t is also quite loud. The fan runs constantly, even when the LED lights are off (near zero power use). I have it in an enclosure under a lower kitchen cabinet, but it is loud enough that it is a nuisance. I will replace with a non-fan alternative product.

This is a inexpensive supply. Works great. However, it puts out a lot of RF interference on the Ham Radio HF frequencies. The interference was so bad on 40 meters I was not able to copy any signals. Would be fine for VHF and UHF operation. I am using it for a bench supply.

item arrived broke it is way cheap stay clear of this buy the delta dps60m 60amp power supply its more but well worth it.

cheaply made, fuse blew my 4th use.