NANKADF DC Power Supply Variable with Memory 30V 5A Bench Power Supply with 4-Digits LED Display Adjustable Regulated Switching Power Supply with Memory Recall，Output Disable Button

Works for diagnostics and testing of sensors that need power. Like the overload protection too. Buy it.

It's a pretty good value for the price, but my power button is glitchy and it doesn't easily turn on or off, which could be a problem if you need to turn it off quickly in an emergency. Otherwise, the quality seems decent.

This brand is better than exactly the same looking Power Supply sold under name WANPTEK. WANPTEK had issue with display brightness. This brand (NANKADF) had no issues. I am keeping NANKADF and returnining WANPTEK.

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.

I am using this to simulate a solar panel. It works well for this, with three buttons I use to simulate three different panel output conditions. Note: preset and store values into the presets before you use them. The presets seem to default to 30V.