MidNite Solar Classic 250 MPPT Solar Charge Controller Voltage: 12-72V battery Max input: Up to 250 input operating voltage Max current out: 63 amps, ETL listed to UL1741 and CSA Battery-based operation only, Built in DC-GFP and Arc Fault Detector, Solar wind and hydro MPPT modes, Ships with MidNite Battery Temperature Sensor Length: 14.870, Width: 5.950, Height: 4.000