DC Power Supply Variable,0-30V 0-5A, 4-Digital LED Display, Precision Adjustable Switching Regulated Multifunctional Power Supply Digital with USB Interface, Disply with Output Power Lab Grade

Good:*Product is sturdy, well made, light, and easy to carry.*Controls are easy to understand, and the LED display is easy to read regardless of the lighting conditions.*This is a 4-LED display so I can easily set it below 10mA for testing small 2V-6V devices where the leads are exposed.*Handles heat well. Used a short circuit for about 20-30 seconds to heat up a small piece of graphite, the graphite smoked and glowed brightly while the power supply was cold to the touch and didn't even need the fans to be on.*Alligator clips that come with the device seem to be of high quality and have very strong grip. They worked well with some projects that my others haven't done so well with.Bad:*A lot of times you'll try to raise the value of either the Voltage, Current, or sometimes both, and the display will say 0 for a while before jumping quickly to ~1.5A or ~12V or sometimes both. It's not been a huge problem yet but might be if you are working with something delicate.*This device isn't very capable of giving out low amperage (1mA - 10mA) while giving out high voltage (~25+V). It may just be the materials I've tested on but the lowest I got was ~30mA at ~28V using a very unorthodox material with presumably high electrical resistance compared to a lot of others I've tried. If you're interested in getting 1mA-10mA with around 25+V using a highly conductive electrode, this machine won't be able to generate it for you.

Es muy cómodo y fácil de trabajar gracias

I really like this power supply.This power supply works good for countless projects and the added USB port Is super convenient.Lightweight, accurate, convenient and the included test leads are Made from quality Materials.I would highly recommend.

I'm a electrical engineer and wanted some additional supplies.. This is a pretty good little bench supply.... the current measure is a tick off compared to my 6.5 digit bench meter, but its close enough for almost everything. I prefer this to my bigger linear supply for most things. I grabbed a second one for the garage for my little projects out there

This Chinese bench power supply has a nice design appeal and worked well for me for several months. Then, without warning or apparent cause, it quit working altogether. It does not power up, even though the fuse is OK. I found no obvious defects inside, no cold solder joints, no burned components, nothing to explain the failure. Fortunately, it is cheap, and sadly, it deserves to be.

I am very happy with this power supply as an great addition to my workbench. Works as advertised, voltage adjustment knobs are very sensitive, but once there voltage is spot on.

The first one has problem. Current and power always show 0.000 even there is output. Changed to a second one. The performance is pretty good so far.

Excellent product good quality and fast shipping

I like having the Wattmeter, the displays are large and bright, adjustment is quick and easy and the accuracy is quite good. I have noticed that voltage output will decrease slightly over time, likely due to component heating over time creating some voltage drift. The drift only amounts to 0.01 - 0.02V over a period of time and is negligible for most purposes.I also liked the fact that this power supply has a built-in USB port (2 would have been better), as these are really handy for charging or running Arduino boards on my desk. The USB current draw does NOT show on the Wattmeter.The cooling fan is usually very quiet at light loads, it is a bit louder when drawing more amps but still quite quiet...about the same level as my quiet desktop computer fans.One thing I wish this power supply had was an Output Switch so that I could turn the power supply on first, then enable the Output to avoid voltage spikes. Lacking that, I plug in my projects after turning on the power supply and unplug them before turning the power supply off.How much do I like this unit? Enough to have bought a 30V-10A model at regular price for heavier loads and I could not say no to a 2nd 10A unit when it was on sale for $45 less than normal price.

Que ce soit en stabilisation de courant ou de tension, cette alimentation fonctionne parfaitement.

facile d'utilisation, precis, bonne description, expédition rapide.

good