... PWM control CE,TUV,ROHS SOLAR WATERPROOF CONTROLLER WITH BUILT-IN LED DRIVER(SDL-SF60W) CharacteristicsControl circuit use MCU and ... be damaged andneed change, include fuseLEDindication on system condition LED indicating the system of charging, overcharge, power full, ... be set with three timer and 10%-100%power POWERADJUST built in constantcurrent device ,can adjust power of LED lights