IP68 Waterproof Solar Charge Controller 1,Stree light solar controller 2,1 year warranty 3,PWM Control KM-5A, ... Light Orange blinking indicates the solar panel voltage.I: Unique cooling technology, the controller closed tight with waterproof, dustproof, moisture, corrosion, ... controller can be applied to a variety of sources. Such as low pressure sodium lamp (with ballast can produce high-frequency ...