... ,high efficiency 2,.LCD display,adj MPPT solar charge controller/30 amp charge controller/solar controller MPPT (1)12V / 24V auto ... tracking speed...(5)Widely used, automatic recognize day/night.(6)Timer function with 1-15 hours option for street light ... 10)Electronic protection: over charging, over discharging, overload, short circuit..(11)Reverse protection: any combination of solar module and battery ...