... LED display 3.Various protection 4.Temp. compensate 12V/24V 15A~20A Single output pwm Solar charges SR-L12V/24V ... -L12V/24V 15A~20A Single output pwm Solar charges SR-L1.PWM2.Digital LED display3.Various protection4.Temp. compensateSingle-output series (SR ... .ModelSR-L seriesrated charging current5A,10A ,15A ,20A ,30A ,40A(optional)Rated discharging current5A,10A ,15A ,20A ,30A ,40A(optional)Working ...