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 short-circuit protection, open-circuit protection, reverse polarity protection and over-load protection in order to ensure that the batteries are not overcharged. Features - Color: As shown. - Size: 6.86 x 5.34 x 2.2/2.7 x 2.1 x 0.87 inch. - Material: Plastic. - PWM controller, Long standby time. - Three charging can effectively prevent battery from unbalanced and improve battery life. - Easy installation and easy operation. - LED indicator, battery power display. - Manual adjustable discharge mode. Specification - : 5A/10A. - Voltage: 6V/12V. - Input withstand voltage: &lt;30V. - No-load : <=6mA. - Charging circuit voltage drop: <=0.02V. - Discharge circuit voltage drop: <=0.01V. - Working temperature: -30-55 degree centigrade. - Storage temperature: -45-70 degree centigrade. - Humidity: <=90%. - Waterproof: IP30. - Install wire number: AWG22 14/2mm&sup2;. Package list: 1 x solar controller