Power (W): 240/480; Battery Voltage (V): 12/24 (Automatically identify); Nominal charging current (A): 20; Nominal dis-charging current (A): 20; USB output: 5V/2A; Charging mode: Sealed, Gel, Flooded; Solar Panel: Mono Crystalline Technology, Power (W): 200, Voltage (V): 30; Life span: 20 years; Solar charge controller integrates an LCD screen displaying PV/battery voltage, charge/discharge current, charge/discharge capacity, charging status, temperature, etc; High reliability: heat protection, overcharge and over-discharge protection, short circuit protection, open circuit protection, etc.; Various charging and discharging parameters can be flexibly adjusted, suitable for different types of batteries, helping to extend battery life; Highly effective and intelligent 3-stage PWM charge management; CE, KC certified can apply for other standards as requirements; Warranty: 1 year; OEM accepted;