12V/24V Single output pwm Solar charge controller SR-L 1.PWM 2.Digital LED display 3.Various protection 4.Temp. compensate 12V/24V Single output pwm Solar charge controller SR-L1 ... ,30A ,40A(optional)Rated discharging current5A,10A ,15A ,20A ,30A ,40A(optional)Working Voltage12V ; 24V ; 12V/24V AutoNo load losses<5mA;Charging ...