... control PWM control CE,TUV,ROHS SOLAR WATERPROOF CONTROLLER WITH BUILT-IN LED DRIVER(SDL-SF60W) CharacteristicsControl circuit use ... , power full, powerlow, over-discharge, over load, out short circuit, load on/off, etcIndustrylevel production standard widetemperature ... resistancevalue is easily changed by temperature and vibration, in order to make sure thecontrol accuracy and reliabilityOperation ...