1. Solar Charge ControllerThe solar charger controller is compatible with 12V 24V systems. The discharge current is 30A. It has an industrial microcontroller builtin, which automatically manages the operation of the solar panel and battery in the solar system. It has dual USB ports to support mobile phone charging. 2. Safety ChargingIt adopts an ABS flameretardant shell, which is fireproof, shockproof, corrosionresistant, solid and durable. It has builtin circuit protection to guard against reverse polarity, sparks, overcharging, overcurrent, open circuits, short circuits and overheating. The smart LCD display shows the charging status and battery status to make you more assured of charging. 3. LCD DisplayIt comes with a display that can clearly indicate the status and data. The solar charger can be conveniently switched between modes and configured for parameters. 4. Battery TypeTo protect the lifespan of your battery, once the battery voltage is out of range, the solar controller will automatically turn off.