Description _x000D_ _x000D_ This Solar Charge Controller automatically manages and regulates the voltage and current going into the from the solar panel, and it's designed with short-circuit protection, open-circuit protection, polarity protection and over-load protection in order to ensure that the batteries are not overcharged. _x000D_ _x000D_ Features _x000D_ _x000D_ - Solar Charge Controller regulates the voltage from solar panels going to. _x000D_ - Build-in industrial chip to control the and discharge process.Parameters are adjustable. Prolong the life cycle and keep the load work well. _x000D_ - Professional charge management, all necessary protections equipped. Short-circuit protection, open-circuit protection, polarity protection _x000D_ - LCD screen with backlight function clearly indicates status and data. _x000D_ - Easy to install and operate, suitable for home, industrial and commercial solar energy system application. _x000D_ _x000D_ Specifications _x000D_ _x000D_ - Color: Color: Black. _x000D_ - Material:. _x000D_ -: Approx. 18.8 x 5.2 x.2. _x000D_ - Voltage: 12V/ 24V. _x000D_ - Charge Current: 20/30A _x000D_ - DC: 12V _x000D_ - Floating impulse voltage: 13.7v / 27.4v _x000D_ - Undervoltage protection: 10.5v / 21v _x000D_ - Under voltage recovery: 12.2v / 24.4v _x000D_ - Loop pressure drop: 170mV _x000D_ - Temperature compensation: - 4 mv/Cell / _x000D_ - Working temperature: - 20 ~ 60 _x000D_ - Storage temperature: - 30 ~ 70 _x000D_ - Humidity: than 90%. 1 x Solar Charge Controller