This Solar Battery Charge Controller automatically manages and regulates the voltage and going into the battery from the solar panel, and it’s designed with over- , open-circuit, short circuit, anti-reverse protection in order to ensure that the are not overcharged. Features - - Size: 13.2x6.9x3cm/5.1x2.7x1.1inch - Material: ABS - LCD display, can adjust charging or discharging settings. - Over- , open-circuit, short circuit, anti-reverse protection and other fully automatic controllers: the above protection does not damage any components, and does not burn insurance. - Adopting PWM charging main circuit so that the voltage loss of the charging circuit is lower than that of the charging circuit using diodes. - Double anti-reverse circuit, low heat productivity - Note: can only charge - cell. Specification - Rated voltage: 12V or 24V 10A - voltage: <50V - Floating voltage: 13.7V / 27.4V - Cut-off voltage: 10.7V/21.4V - Discharge recovery voltage: 12.6V/25.2V - USB Output: 5V 3A - Working temperature: -35 degree centigrade-+ 60 degree centigrade Package list: 1 x solar controller