1. There are 3 version, No communication version, communication + USB version, communication + USB+ BT (bluetooth). conncet to PC software with usb cable or Bluetooth to control the device or connect to Android phone with Bluetooth, you can only select the Bluetooth connection or USB connection, because the Bluetooth board and USB communication board can only be used alone, please be careful before you make the order, do not order the wrong version ^^ 2. Its adjustable output voltage range is 0- 32.00V, step by 0.01V. and make sure that the input voltage is 1.1 times higher than output voltage.
^^ 3. Its adjustable output current range is 0- 5.000A, step by 0.001A. ^^ 4. It has 10 data group to store settings, and you can press the V and A to quick set the value ^^ 5. You can also set the over voltage value, over current value, over power value, screen brightness and other settings at the setting page