[Advanced MPPT Technology] 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. [Multi-functional design] Multi-function 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. [Safe voltage protection] MPPT solar controller with voltage protection, including battery over-voltage and over-current protection, power failure protection, overcharge protection, deep discharge protection, reverse connection protection, and overheat temperature protection. [User-Friendly Design] The 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). [Multiple battery charging options] Compatible with for Seal, for GEL, for Flooded, for LifePO4 battery charging. [Please note]:This solar controller combines MPPT and PWM charging technologies,It delivers a high charging efficiency and excellent value for money. Type:80A Colour:Blue Material:Plastic Package Contents: 2 x Solar Charge Controller 2 x English manual