... 3.Various protection 4.Temp. compensate 12V/24V Single output pwm Solar charge controller SR-L1.PWM2.Digital LED display3 ... compensation function.ModelSR-L seriesrated charging current5A,10A ,15A ,20A ,30A ,40A(optional)Rated discharging current5A,10A ,15A ,20A ,30A ,40A(optional ... -35°C to +65°C;Over-load and short circuit protection1.25 rated :loads current 30sec, 1.5 rated: loads current 5sec, over ...