PWM Solar Street Light controller,rated charge current 20A,System voltage 24V/12V AUTO,Overload, short ... alloy design, beautiful appearance, good heat dissipation.2,System DescriptionThe controller for the solar power system, solar DC lamp system design, intelligent ... 24V;(Duration:Voltage down to return to action until the charge)Charge return voltage13.2V X2/24VTemperature added-5mV/°C/2V(Upgrade ...