IP68 Waterproof Solar Charge Controller 1,Stree light solar controller 2,1 year warranty 3,PWM Control KM-5A, ... 7. Light Orange blinking indicates the solar panel voltage.I: Unique cooling technology, the controller closed tight with waterproof, dustproof, ... 50% of energy use lit environmentEight: Samples are available1 MCU and specialized control algorithms to achieve intelligent control2, pure ...