Maximum output current (constant current value) Configuration : Switch to current screen, shorten directly the output terminal to adjust the DC potentiometer. The CV voltage adjustment potentiometer rotates clockwise to increase the output voltage. The indicator lights CC - constant current indicator light, when the constant current (red); Status indicator on the output (green); Type: Voltage Regulator Select button: short pressure switch between voltage, current, power, wheel display; Long press or exit calibration mode; On / off button button: short pressure control of the output end that turns on or off; long pressure: set the default power on to be off or on, press to release more than , it will be displayed for each power-by default there is an output, and the screen off means there is no default output each time turn on the energy. The current adjustment potentiometer CC turns clockwise to increase the current limit value. When the charging current reaches the limit current, it enters the constant current state (keep in mind that the output current can be increased without adjusting the potentiometer.) At constant voltage, the output current only depends on the load, varies according to load); Colour:blue Material:Metal + plastic Size:84*21*35mm Package Contents: 1* modules Only the above package content, other are not included. Note: Light and different displays may cause the color of the item in the a little different from the real thing. The measurement allowed error is +/- 1-3cm.