Feature: 1. LCD Display: This controller has a large screen LCD display, by which you can easily check the running statues of the controller. 2. Parameter Adjustable: You can adjust the charging and discharging parameters to charge multiple types of batteries to meet different charging needs. 3. Charging Management: This controller possesses complete three phase PWM charging management. You can take this controller for safer solar energy use. 4. Multi Protection: Built in over current, short circuit protection, open circuit protection, reverse connection protection, all of which are self recovery type, without damaging the controller. 5. Low Heat: This controller features dual MOS anti back flow circuit, high power charging mode, and ultra low heat value generated. Specification: Item Type: Solar Charge Controller Material: ABS System Voltage: 12V 24V Adaptive Maximum Photovoltaic Voltage: Less than 50V Floating Charge Voltage: 13.7V (default, adjustable) Discharge Cut Off Voltage: 10.7V (default, adjustable) Discharge Recovery Voltage: 12.6V (default, adjustable) USB Output: 5V, 3A Standby Current: Less than 10mA Operating Temperature: - 35 to +60 ℃ Color: Blue . Package List: 1 x Solar Charge Controller1 x Manual