The controller is designed for solar dc lighting system. There are several optional working modes, and has two output modes. Dc output modes and two time setting modes. Specifications: 12v, 12/24v, 5a, 10a, 15a Use mcu and professional software as the control center to fulfill intelligent soc control, protection to overload, outside and insdie short circuit, reverse connection, thunder and lightining, pv panel reverse current, over charge and discharing etc, usd pwm high efficiency charging way and temperature compensation. Industry level production standard, led indication on system condition. The controller pcb is pained with england apl lacquer, its highly moisture-proof