RUZIZAO Bench Power Supply Variable: 30V 5A Adjustable Switching Regulated High Precision 4-Digits LED Display 5V/2A USB Port Test Lead Output & Input Power Cord Bench Lab DC Power Supply

Excellent variable power supply, does what it’s supposed to do and easy to regulate

This is my first proper bench power supply and I've only had it two days but it looks great. It’s very easy to get the exact power you want/need. Every thing is simply laid out with a very clear panel with the read out. It’s also a perfect size being small enough to fit nicely on a table but still feels solid with a metal case and plastic panel. It's also very quiet and I wasn’t expecting it to be as accurate as it is, especially in this price range, it’s simply amazing.I don’t know if it’s good or bad, but there’s a 9 second delay when switching off, it’s not my only piece of equipment to have a delay so I think I will be ok with it. I do recommend it for hobbyist like myself.

The product is well constructed with quality components and works well, iam very pleased.

Good for hobby electronics. The voltage setting is a bit delicate, for example if you set it to 12V output, then it needs a fine touch with the fingers to turn the voltage knob to show the correct value. Once set, you need to verify with a volt meter, and perhaps make a minor adjustment. Also a proper manual would have been useful. Having mentioned these things, they are only minor inconveniences, and I have found this to be a useful bench power supply.

Checked it with a lab calibrated meter . Underload set at 13.8 v and loaded to 5a the display on the power supply states the required setting but.... The unit is only supplying 11.4 v thus anything voltage sensitive may be under voltage and their for susceptible to damage

It's working fine, can hold up to some loads.Used with a Ryobi battery powered mini compressor and it does go all the way to 8 bar but not in full power. It's not a professional one 😉Also checked it with a digital mini power amplifier and does not put any additional background sounds ....so for DIY usage it's fine, and also doesn't really heat itself to much under heavy and constant load.

I needed a unit with both voltage and current regulation and this unit fitted the bill perfectly. I have run it at full current (10A) but low voltage and it didn't even get warm. I suspect at higher voltages and full current this would change but at the moment my use case is either high current or high voltage but not both.It works excellently for fettling NiMh batteries that have lain unused for a while and developed internal dendritic shorts. Set the voltage to 1.4V, the current limit to 2A and connect a cell +ve to +ve. Initially the unit will current limit until the dendrites are burnt through then rapidly switch to voltage limiting and around a 200ma charging current. Leave it like that for a few seconds and then the cell can be charged normally in a smart charger.It also works great for powering a home made hot wire polystyrene cutter.

Surprisingly accurate bench power supply. In all honesty, I wasn't expecting it to be so accurate, but when tested the output using a professional, calibrated Kewtech multimeter, the voltage was spot on, right down to 1/100th of a volt.The unit is quite light weight, but is well built, and had a clear display and smooth-turning knobs. The terminals accept both banana plugs and Y connectors. In the box, in addition to the power supply, you'll find a kettle lead, two colour-coded cables, a small instruction pamphlet, and a larger sheet explaining how to set a constant current.I bought this mainly for electroplating, and it does a stirling job, making the process fast and simple.Would I recommend it – absolutely!

Bought this to use for anodizing. It's small, light, and works well.