Power 500 W Capacity 12.8V 24AH (308wH) / 12.8V 30AH (384wH) / 12.8V 36AH (461wH) Optional Battery Type LiFePO4 solar panel ; 100W LED light: There are four states: LED light is highlighted, LED light is half lit, LED light is flashing, and LED light is off External battery: DC12-15V (pay attention to positive and negative electrodes)