RUZIZAO Bench Power Supply Variable: 120V 3A Adjustable Switching Regulated High Precision 4-Digits LED Display 5V/2A USB Port Test Lead Output & Input Power Cord Bench Lab DC Power Supply

Exactly what I needed for projects. Fast delivery.

Great power supply . easy to use and brought 3 of my ryobi batts back to life for less than the price of one of them !

I have tried and tried to message Amazon or the seller but it's impossible to do and without a warranty card it is not possible to claim under the 12 month warranty

This has the power output control, and also you can easily set voltage and current without pressing and holding and selecting like other models.

I bought this because I need over 100 volts DC at up to 3 amps for some anodizing projects. The output has some ripple but is ok. Construction and design are good. CC and CV modes work as expected.My only gripe and the reason I've not given 5 stars is the adjustment knobs are potentiometers rather than rotary encoders. This means that they have end stops rather than turning for ever. So you have to keep putting the fine control back to the 12 o clock position before making adjustments to the coarse one, otherwise you are likely to hit one or other of the end stops when homing in on your target voltage with the fine one. Iyswim.This might seem petty but it's actually quite annoying. If you're the manufacturer, please note: I for one would be happy to pay another ten quid to have rotary encoders instead.

Zero amp control and fine tune is a subtle as driving a truck through your house. Output power button stopped working after a few hours it says off but voltage is still coming through.DO NOT TRUST THIS JUNK WITH EXPENCIVE ELECTRONICS you will end up destroying them.you would have more control over voltage/amps sticking your fingers in a plug socket.

No problems and happy

For the price, this has a place on the electronics workbench but of course it isn't lab quality. Great for school projects and that kind of thing. One disappointment is that the built-in ammeter does not register anything less than 10 mA. The display will jump from 0 A to 0.01 A. For finer readings I used an in-line ammeter.

Elle serait parfaite si elle était plus facile à régler.Les boutons sont peu progressif, les valeurs bougent trop vite, et la molette "fine" n'est pas sans fin et n'est pas assez précise pour régler une valeur précise sans y passer un temps fou.