DC Power Supply Variable,Lab Bench Power Supply Adjustable 30V 5A 3 Digital Display,for Circuit Test,Electrolysis,DIY Electronics Testing, Battery Charging,Repairing,Researching,SKY TOPPOWER STP3005

Perfect for my bench test needs. Easy to use and the only suggestion I can make is that the from panel labels for V/A fine/course should be labeled better. Its easy to make the mistake of using the wrong knob for adjusting fine voltage/current when in the midst of a test

Does the job well. Design of power cable could be revisited. Bulky attachment adds several inches to the unit depth, perhaps a right angle plug would be better.

I got the 10amp model just as a safety buffer. Most of my stuff used on it is 2 to 5 amps max. This power supply never seems to struggle under load and is very quiet.The display is easy to read, and the included instructions could be understood by anyone close-by. Fan comes on automatically when required by settings. It is also variable speed so it is quiet during most loaded operations. A great buy at intro prices for a basic no bones model that gets the job done.

This little single-output power supply works well for my hobby projects. It doesn't take up too much space or make too much noise. I am happy with the product so far. The 3-digit display is enough for me and much cheaper than the 4-digit version.

Mine came with the negative terminal hanging loose, which I guess some other people had as well. I didn't mind so much as it isn't a hard fix (just grab a PH2 screwdriver and a 7mm wrench) but it is pretty poor quality to ship something in that kind of state. I suppose if you really want to you could easily replace the terminals with some nicer ones as these are pretty mediocre. The accuracy of the display could be better, and there is no reason to buy the 4 digit versions as they will do you no good at all. Volts were within 0.01, but the current was a bit further off. One potential big issue is the ripple and switching noise. If you want to use this for ham / amateur radio that I'd suggest looking elsewhere. Looking at the scope capture you can see the switching frequency has spikes every 15us (66.66khz) and a smaller ripple at about seven times that, so if you are using an SDR it'll probably create noise spikes every 66khz. (yes that scope capture is zoomed way in.) That small amount of noise won't hurt battery charging, electro plating, or even most micro controller / Arduino projects, but if you need a clean supply, this ain't it and you'll need to add some more filtering. I intend to use this as more of a workhorse supply where I can't use my other fixed 5v or 12v supplies so I'm not going to be returning it or anything, but as always, caveat emptor.

This is an excellent unit for many purposes. I use it mostly for charging lithium iron phosphate batteries. It is perfect for testing and tuning dc motors . I LOVE MY POWER SUPPLY..THANKS

Works great! Met my needs.

It does 60v at 5A and really accurate as well . This is an early review but everything works exactly as described and no problems with it so far after day 1 . Might buy another one so I could run them in series . Came packaged well and fast shipping Very nice unit , would highly recommend it .