Features 1EXCELLENT CHIP: The solar charge controller adopts industrial grade main chip, 16AD sampling accuracy, with accurate real time discharge current display. 2MULTIPLE FUNCTIONS: Automatic focus track loading, with high charging efficiency, uninterrupted detection and charging, and bidirectional focus track. 3CIRCUIT PROTECTION: The solar controller has overcurrent, short circuit, reverse connection, open circuit, and automatic recovery protection to ensure safe operation. 4HIGH EFFICIENCY: The solar panel controller adopts MPPT technology, with tracking efficiency up to 99%, greatly improving power generation efficiency. 5OTHER FUNCTIONS: The solar controller adopts an LCD display screen, which is clear and intuitive, with dual USB ports, making it easy to connect and use. Specification Item Type: Solar Charge ControllerProduct Material: ABS Package List 1 x Solar Controller1 x User Manual Note When installing for the first time, ensure that the battery has sufficient voltage so that the controller can recognize the correct battery type.