Specifications: This solar charge controller has a rated current of 50A and a size of about 13.5x7x3.2cm/5.3x2.8x1.3in, suitable for OPEN, AGM and GEL batteries.LCD Display: This solar charge controller is equipped with a large LED display inside, which can detect the working status of the battery board and adjust the parameters in time.Circuit protection: This solar charge controller has built-in overheating, overcurrent, short circuit and open circuit protection, and can automatically restore operating performance after troubleshooting.Charging Performance: This solar charge controller can MPPT two-way focusing and charging tracking, continuously monitoring during the charging process, with high charging power and high efficiency.Parameter adjustment: This solar charge controller can adjust charging and discharging parameters.The rated voltage is 12V 24V automatically, 12V is suitable for 18V solar panels and 24V is suitable for 36V panels.