IP68 Waterproof Solar Charge Controller 1,Stree light solar controller 2,1 year warranty 3,PWM Control KM ... Light Orange blinking indicates the solar panel voltage.I: Unique cooling technology, the controller closed tight with waterproof, dustproof, moisture, corrosion, ... inherent characteristics4 Science of battery management,5 with a power-down save function parameters, namely the system model and ...