1. Advanced MPPT Technology100A MPPT solar controller with advanced MPPT maximum power point tracking technology algorithm, 12V/24V/36V/48V automatic recognition; dual USB 5V charging ports, and the maximum power point of the pv array can be quickly tracked in any environment, tracking efficiency not less than 99.5%. and significantly improve the utilization of energy in solar system. 2. Multifunctional designMultifunction LCD with backlight display and clock display, 7 operating modes: charging mode, light control mode, light control time delay control mode, universal control mode, manual control mode, timing control mode. 3. Safe voltage protectionMPPT solar controller with voltage protection, including battery overvoltage and overcurrent protection, power failure protection, overcharge protection, deep discharge protection, reverse connection protection, and overheat temperature protection. 4. DesignThe LCD is designed to dynamically display the operation data and working status of the equipment. Controller parameters display (working mode, battery voltage, PV charging current, battery discharging current, product working temperature, delay time). 5. Multiple battery charging optionsCompatible with Seal, GEL, Flooded, LifePO4 battery charging. 6. Reliable warranty plan a 1year warranty. Lifetime technical support.