1、Main Features: This solar charger possesses 32 bit main control chip, an large screen LCD display, and charging and discharging parameters adjustable function. 2、PWM Charge Management: This solar controller features complete multi stage PWM charging management, which can be set as off charging, to better support voltage sensitive loads. 3、Multi Protection: This controller has built in reverse connection protection, open circuit protection, high temperature protection, over current, short circuit protection (settable), all of which are self recovery type without damage the controller. 4、MOS Circuit: This solar charger adopts dual MOS anti backflow circuit, which ensures an ultra low calorific value, you can use the controller safely and confidently. 5、Wide Application: This solar controller is suitable for solar power generation system, solar street lamp, solar charger, solar light box, RV, etc. 1 x Solar Charge Controller3 x Red Terminal 3 x Black Terminal1 x Manual  Item Type: Solar Charge ControllerMaterial: ABSVoltage: 12V, 24VCurrent: 40AWorking Temperature: - 35℃ to 60℃Altitude: Less than or equal to Approx. 3000m / 9842.5ftProtection Grade: IP32