DC Power Supply Variable, 30V 5A Adjustable Switching Regulated Power Supply with Encoder, Upgraded 3-Digits LED Display, Electroplating DIY LED Test Mini Regulated DC Bench Power Supply

This puts the power where you need it, plus its light weight and compact. Started using it for electroplating but currently its growing crystals in my Silver Cell. Easy to adjust voltage and good quality for the price!

Works great. Used it for electro-etching aluminum and it maintained both 9 and 12 volts and limited amps according to what I set it to.

I needed a constant-current power supply for something I was working on, but wasn't sure how much use I would get out of one afterwards. Not wanting to spend a lot of money, I came across this supply that not only has the constant current capability I needed at the time but also a constant voltage function as well. This is the perfect size to sit with the rest of my bench equipment and looks right at home sitting on top of my bench DMMs. While the functionality of the unit is as advertised, I did have to knock off 1 star. That is for the standard IEC power inlet on the back. I at first thought I had a DOA supply but found that some IEC power cables are very loose in the socket on this supply, thus not making a good connection. I can work around it, so not a reason for me to return the supply.

My first round of testing has me quite impressed for the price. I will update my review later if something changes, but it appears that this will work well for low voltage tinkering (arduinos, pis, etc). My initial voltage readings by range: 0.0v - 0.7v: Pretty spotty. Voltage was mostly correct, but would waver up and down a LOT. I wouldn't use it for anything below 0.7v (not sure this would ever come up anyway). 0.7v - 3.3v: Good, but a little off, within 1% - 2% of expected voltage. Should be perfectly fine unless you need very exact voltage for some reason (and if you do, don't buy a $30 bench power supply). 3.3v+: Spot on, usually exactly on the voltage or very, very close.

Excellent little power supply - needed a replacement for my bench and it is easy to use and love the current draw function. Adjusting levels is a bit different - but doesn't take long to figure it out - worth it!

So far the output is reliable and it seems reasonably accurate. The cooling fan is rather loud but I imagine that is a necessary compromise with how small this is. We'll see how reliable and durable it is long term.

Love the power supply but there are 2 things I dislike about it. 1 you have to turn the knob insane amount of time to make it go up or down. , It took me 6 minutes to set it from 30 to 12 volts. 2. the fan runs constantly at high speed. even on very low voltage and 0 load. but the vomtage is accurate and it gets the job done and looks nice

I was hesitant to buy a cheaper bench power supply, but the huge pile of glowing reviews swayed me. I am quite happy with it. Works perfectly. Only issue I had was with very low voltage - I can't get a stable output under about 0.9V. Had to whip up a little voltage divider circuit to generate 300mV and 600mV stable for oscilloscope calibration but it was able to handle the rest of the cal range up to 17V without a problem. Comes with a decent set of output cables - banana jack with alligator clips. Wish all my equipment had this awesome blacked-out finish - I love it - looks great.