IP68 Waterproof Solar Charge Controller 1,Stree light solar controller 2,1 year warranty 3,PWM Control KM-5A, 10A, 15A,20A,30A light control+ ... low pressure sodium lamp (with ballast can produce high-frequency current). Low energy-saving lamps, LED lamps and a variety of ... make regulation more convenient, more reliable6 MOS charging circuit in series with dual control loop, the loop voltage loss than ...