Microtek Solar Charge Controller PWM 30 Amps 12v, Grey Microtek micro-controller based high-efficiency solar charge controller is best suited for low-power solar applications. The micro-controller in microtek solar charge controller, senses the battery full-charge voltage and it cuts off the battery from charging, when it reaches full charge status. It reconnects the battery if the battery charge drops to a present level. Microtek solar charge controller also disconnects the solar panel from the battery to avoid the reverse current flow from the battery to panel during night. This product as been specially designed to upgrade any conventional UPS/inverter in to solar UPS/inverter with setting of first priority given to solar while charging. The charge has been programmed to connect and disconnect the ac mains to UPS/inverter depending upon the battery voltage levels to ensure use of solar as primary power and mains only for the emergency. Technical specifications, model no mkt 3012 SC, system voltage 12, maximum solar panel watts 360 WP, max. Solar open circuit voltage 25v, max. Battery charging current 30a, peak charger efficiency 99 percent, battery full voltage (solar charger) 14.5 + 0.1v, battery voltage (mains disconnect) 14. 0 + 0. 1v, battery voltage (main reconnect) 11.3 + 0.1v, recommend battery capacity 150-200ah (1 no), LED indications solar charging, panel reverse, battery reverse, output on, connections terminal block for solar panel and battery connections. Main in: 6a power cord with inbuilt plug top, mains out: 15a power outlet, front panel Switch normal: Default position, solar charging and mains control, bypass: Solar charging and mains bypass.