NANKADF DC Power Supply, 30V 10A Bench Power Supply with Memory Storage & Recall，Variable Power Suppy with Encoder Adjustment Knob, 5V/3.6A USB Quick-Charge & OCP Short Circuit Alarm (0-30v 0-10a)

Great for testing radios and similar DC audio devices. Functionally perfect and well-designed and aesthetically pleasing. The green display is so much nicer than the standard red displays. My only change would be to be able to quiet the beeping when changing volt and amp settings, seems a little annoying. One thing to keep in mind before using the unit is to switch the input voltage in the back of the unit to 115V. For some reason it is set to the higher, foreign setting when you take it out of the box. This unit is far better than the inexpensive ones you can find out there. Spend a few bucks more and get a better unit like this one. I had a cheaper one that I returned that caused static on my radio testing and also emitted a high whine/pitch from within the unit. Overall, this is a great unit for most electronic DC requirements, 30V and 10A. For my purposes with old car radios I can set the volts at 13.75 and the amps at 5A, even though the radios only pull less than 2 amps. I set 5A as a ceiling to be on the safe side if there is an internal short inside the radio. Another good feature is being able to store multiple volt/amp settings for other types of requirements. I am extremely happy with my purchase, no regrets.

I like all the features. Better than the one I bought a couple years ago, it was a different manufacture and no presets.

I like that you can dial up the volts and amps too test small components ! Snd you get a display of unit output in green! Snd you can set up to 2 or 3 frequently use outputs to test commonly tested devices!

Am using this as a manual charger for maintaining automotive lead-acid batteries. Works great for constant current, constant voltage, and float charging…use of which mode depends on state of battery charge. As with any manual battery charging operation, one should monitor the charger and battery at all times.

For what it is, it’s fine and I don’t want to trash it. It’s a easy to use 10A x 30V DC controlled power supply and it works fine, BUT. It’s labeled as programmable and there are numerous references to the USB interface and PC software in the manual BUT it does not exist ! Customer support does not respond. There does not appear to be any USB interface module and the link to the software leads nowhere. I went as far as translating web pages from the Chinese parent company (Wanptek) and got nowhere. Really ! Why advertise a key feature that can’t be used ? As a stand alone power supply it’s fine but overpriced. I didn’t realize until after I started looking into this but nearly all of the Amazon reviews for this unit are Vine Voice. I’m sure they all mean well, but unfortunately there is a big difference between someone who actually needs something for a specific purpose and buys it with there own money compared to a review from someone who gets a “free-be” to evaluate. Overcoming a subconscious bias is very hard. Well anyway, you are paying about a 20% premium for documented and labeled features that do not exist and zero customer support. At a lower price point and / or lower expectations, it’s a nice little power supply.