Feature:1. Innovative MPPT Technology: This solar charger controller utilizes innovative MPPT technology with a tracking efficiency of up to 99% and a peak conversion efficiency of up to 98%.2. Programmable LCD Display: This solar charger controller features a programmable LCD display with clear backlighting for clearer operation.3. Good Heat Dissipation: This solar charger controller is designed with multiple pronged edges, which increases the heat dissipation area and has good heat dissipation performance.4. Multiple Protection Functions: This solar charger controller has multiple protection functions, such as overcharging and over discharging protection, short circuit open circuit reverse connection protection, over current protection, overheating temperature protection.5. Wide Application: This solar charger controller has a wide range of applications and can be used for RVs, trailers, boats, ships, campgrounds, homes.Specification:Item Type: MPPT Solar ControllerMaterial: Aluminum AlloyNo Load Loss: 0.4WConversion Efficiency: 98%MPPT Tracking Efficiency: 99%Temperature Compensation Coefficient: -2mv/, 2V Default ValueOperating Temperature: -10-65Protection Grade: IP21Battery Compatibility: Comply with EN61000, EN55022, EN55024Altitude: 3000m.Package List:1 x MPPT Solar Controller4 x Screw4 x Expansion Tube