20A 30A 40A Solar Charge Controller 12V 24V PWM PV Charging Controller Regulator HD Colorful Screen With 4PCS USB Port ,Easy to Use

When 12V or 24V load connected to the controller works,the screenshow the output current,this function helps user master the workingstatus of the load. With battery temperature compensation,ensure best charge status indifferent environment. Three stage charge mode:strong charge,constant current,floatingcharge intelligent control. User can see the input current and voltage from the solar panelthefunction helps user to test the quality of solar panel(current x voltage =power). lf no operation after three minutes, the system automatically sleep,press any key to restore.