RUZIZAO DC Power Supply Variable (30V 5A), Mini Bench Power Supply with Upgra...

This is a great little power supply for novice user. If your just learning or experimenting with electronics its worth the money. A little noisy with the rear fan but nothing to right home about.

For the price it was worth the gamble to go for a completely unknown brand. When I got it it looked decent enough. It works fine. The fan being 50mm is average loud, definitely not silent. I opened the cover and I was pleasantly surprised by the very good build quality. You set the voltage and current limit digits by clicking and turning where a click goes to the next digit. I am very impressed so far. Would love to see higher voltage versions when these get cheaper. All I am missing is a ground connection. By the way, the cover is grounded, less that 0.1 ohm. If you are thinking of one, it's a yes from me.

I bought this little power supply for home and hobby use. The unit functions well, seems reliable, and the output voltage (which I have checked) is both stable and acceptably accurate. It is not to be compared with laboratory standard instruments but they cost much much more. The display is clear and adjustments are simple and logical. In use, there is a certain amount of noise from the internal cooling fan and this fan is not regulated - that's to say, it runs all the time, regardless of the actual temperature inside the unit. Conclusion: good for the price point, recommended.

I bought this as I had a variety of batteries at different voltages to charge. So far, this is working great for that - it's brought back a few dead/non-charging batteries and I can also use it to power a tool that requires a certain voltage. Only a bit more expensive than a high-end charger that would only do one thing - very pleased.

It is a very nice power supply, easy to set the voltage and current. But the noise of the fan is intolerable: not very loud but a persistent iritation. Sending it back

Am using this to power my 7.5ft GE Christmas tree whilst looking for a replacement plug and contol unit which i didnt know was faulty till i had decorated whole tree and switched on,as the tree is useless without it, the fan constantly runs but is not loud and with all the other sounds in house is not noticeable, very small and build quality is very good will use for other things, so glad I bought it,price is cheap,compared to buying another prelit tree, has got me out of trouble .Highly recommended,

A very good power supply

I bought this to try my hand at nickle plating, it works well.