smart solar charge controller Mode Parameter SL1524LD Current range Input Battery voltage 12V/24V Auto Solar panel voltage ≤50V Max charging current 15A Output LED driver max output voltage 55V LED driver max output power 12V/60W 24V/120W LED driver output current 1.5A 0.3A~3A LED driver converting efficiency 90%-95% Protection, Battery reverse protection Yes Battery overvoltage protection 16.5V×1/×2 LED driver output short circuit protection Yes Solar panel reverse protection Yes Battery reverse discharging protection Yes Undervoltalge protection 11.2V;×2/24V(25°C) 9V~12V Undervoltage resumption 12.6V;×2/24V(25°C) 11.7V~13.3 Others Standby loss 12V≤11mA 24V≤11mA Float charging voltage 13.8V;×2/24V(25°C) 13V~15V Absorbing charging voltage 14.4V;×2/24V(25°C) Add 0.6V on the basis of float charging Charging control voltage and temperature compensation -4mv/cell/°C Light control identification voltage Night 2.5V,Daytime:3.5V ,x2/24V 1V~10V Light control identification time 15sec Working temperature range -30°C~60°C Protection grade IP68 Controller dimension 120mm×69.4 mm×20.5mm barang baru no box