DROK DC to DC Buck Regulator / Converter (with LCD) Measured with Rigol DL3021A and Rigol DP832 

You're a legend. All the ebay descriptions are so broken and don't make sense. This video is the only video that describes exactly how these CC pots work. Thankyou!

I actually just bought this for 3d printer mods your video will help

I'm so thankful for your video. I agree that the manual is lacking. I'm having issues with mine. I'm using it to charge a LiFePO4 battery box I made. It did work, but now when I apply ~ 19 volts the screen briefly lights up and the it shuts down. It did drop the output voltage to ~14.1 volts like I needed, but it stopped working. I added a 10A schottky diode on the positive output wire because I read somewhere that it would only allow voltage to go one way (into the battery). Thank you for the great video and any help you can provide. I pray you have a great Thanksgiving holiday.

Thanks for the great video. I think mine is on a different firmware, though. I had to add power with the top red button held down to change voltage, but when trying to do the same as directed by their docs, it doesn't work for current. Kind of get what you get with offshore products... They aren't exactly ISO9001 compliant.

l am trying to understand this device and your video has been helpful. I am trying to reduce the voltage from a 12 volt battery that charges to 14.2 volts from my solar panel to a second battery that can run my entrance gate which can only be

If I set it for 10v output, and change between a 12 or 24 volt input, will the 10v output remain for both input types, or would the pot for voltage output need to be adjusted each time? Thank you kindly for your patience and support.

Pm me can you install do sola battery...

I ordered this yesterday .the 12 amp model .I'm hoping it will run 8 amps continuous for at least 6 hour's