Features [Peak Tracking]: Solar charge controller using advanced dual or multi peak tracking technology, when the battery panel is shaded or partially damaged, multiple peaks will appear on the IV curve, the controller can still accurately track the maximum power point. [High Efficiency]: Solar regulator built in maximum power tracking algorithm, the MPPT tracking efficiency can be up to 99%, significantly improving the energy utilization efficiency of photovoltaic system, about 25% higher than PWM charging efficiency. [Current Limit Charging]: Support sealed liquid rich gel and lithium battery, with current limiting charging mode. When the charging current of the panel is greater than the rated current, the controller automatically reduces the charging power. [Multiple Functions]: Solar controller supports instantaneous high current starting of capacitive loads, automatic identification of battery voltage, with lithium battery 0V charging function, and fault LCD display, convenient for users to determine system faults. [Temp Rise Protection]: MPPT intelligent solar regulator built in over temperature protection mechanism, when the temperature exceeds the device setting value, the charging current linearly decreases with the temperature, reducing the temperature rise of the controller. Features: 1. The combination of various tracking algorithms can accurately track the best working point of the IV curve in a very short time. 2. With current limiting charging mode, when the power of the panel is too large and the charging current is greater than the rated current, the controller automatically reduces the charging power to make it work at the rated charging current. Can support capacitive load instant high current start. 3. Automatic identification of battery voltage. 4. With fault LCD display, convenient for users to determine the system fault. 5. With temperature compensation function, automatic adjustment of charge and discharge parameters, improve battery life. 6. Perfect electronic protection function. 7. High input voltage withstand charging of solar panels can reduce the specifications of solar wiring wires and reduce system costs. Specification: Item Type: Solar Charge Controller System Voltage: 12V 24V 36V 48V Auto No Load Loss: ≤0.4W Solar Maximum Input Voltage: 180V(25℃), 150V(-25℃) Battery Voltage: 9-64V Maximum Power Point Voltage Range: Battery Voltage +2V-150V Rated Load Current: 20A Conversion Efficiency: ≤98% MPPT Tracking Efficiency: >99% Temperature Compensation Coefficient: -2mv/℃/2V (default value) Working Temperature: -10℃-65℃ Protection Grade: IP21 Altitude: ≤3000 Meter / 9842.5foot Package List: 1 x Solar Controller 4 x Screws 4 x Expansion Screw 1 x User Manual Package List 1 x Solar Controller 4 x Screws 4 x Expansion Screw 1 x User Manual