Features:-Advanced Maximum Power Point Tracking(MPPT) Technology:
Tracking efficiency not less than 99.5%, 15%-20% higher than common PWM algorithm.-High Quality Components and Advanced Power Conversion Circuit:
The max. conversion efficiency can reach more than 96%; full-load efficiency can reach 97%.-Combination of Various Tracking Algorithm: JN-MPPT series can track the maximum power point quickly.-With Current-limiting Charging Mode:
When the charging current exceeds the rated current, the controller will limit the charging current to the rated current charge.-With Internal Temperature Detection Function:
When reaches 75°C, charging current is limited to half of the rated current; when reaches 90°C charging and load are shut off.-Multiple Protection:
With over charge/over discharge/over temperature/over load and reverse connection protection.The battery temperature compensation function. Specifications:Color: Black+BlueMPPT Efficiency: >99.5%Conversion Efficiency: >96%Material: ABS+Aluminium AlloyTemperature Probe Line Length: 5mCurrent: 40ASystem Voltage: 12V/24V/48V   *Photovoltaic Max. Input Voltage: 12V System: 20V~100V24V System: 40V~150V(suggest lower than 145V)48V System: 80V~150V(suggest lower than 145V)*Photovoltaic Max. Input Power: 40A: 480W/12V, 960W/24V, 1920W/48VRated Working Current: 40A Output Rated Current: 20A  Package List: 1* MPPT Solar Charge Controller1* Temperature Probe2* Connecting Terminal1* User Manual