The Cworth Energy 120A MPPT Solar Charge Controller (Model CE-M12048) is a high-capacity, high-efficiency device featuring automatic 12V/24V/48V voltage detection, a maximum solar input of 200V, and support for lead-acid and lithium batteries.Technical SpecificationsRated Current: 120A maximum battery charging currentSystem Voltage: 12V, 24V, or 48V DC with automatic detectionMax Solar Input Voltage: 200V DC (PV start-up voltage at 25V)Max Solar Panel Input Power: 1,700W for 12V, 3,400W for 24V, and 6,800W for 48V systems