1、The solar charge controller is the intelligent equipment with integration of controlling . 2、It has good running performance with LCD display and convenient operation. 3、High reliable and safe operation, high efficiency, long service life functions. 4、Undervoltage protection function can effectively protect battery over discharge. 5、Adopt advanced MPPT technology to improve solar charging efficiency to a better level. 6、Improved the three-stage charging algorithm to effectively prevent battery unevenness and vulcanization and improve battery life. 7、Can achieve monitoring and transmission functions. 1 x MPPT Solar Controller1 x User Manual Item Type: MPPT Solar ControllerPower: 1KWMaterial: Aluminum Alloy Model FSCM-1224–A-SM PV input Vol. Max. 65V Rated charging current [A] □20A   □30A  □40A Rated battery vol. □12V □24V Over-charge vol. 15V 30V Floating charge 14.4V 28.8V Over-charge recovery vol. 13.5V 27V Over-discharge vol. 10.5V 21V Over-discharge recovery vol. 12V 24V Self-consumption (day) ≤30mA backlight off Self-consumption (night) ≤20mA backlight off Ambient temperature -25℃ ～ +50℃ Altitude work [m] ≤2000 Humidity 85%. NC (25℃±5℃) Data-transfer port RS485 Protection class IP55 Net weight [Kg] 1.2 kg / 2.6 lb(approx.)