Feature: 1. Advanced Maximum Power Point Tracking (MPPT) technology, the efficiency is not less than 99.5% 2. Improve system performance, the highest conversion efficiency is 98%, UItra fast tracking speed, to ensure tracking efficiency 3. 12 24VDC automatic identification of system voltage, LCD panel display design, dynamic display of tool operating data and working status 4. Supports 3 rechargeable battery options: sealed, gel, and liquid filled 5. Charging method is divided into three stages, constant current, constant voltage, and floating charge to extend battery life 6. Built in battery temperature compensation function, and multiple load working modes 7. This solar charge controller has a 3 hour function, A: work at night time B: pause during the period, C: work at dawn Specification: Item Type: MPPT Solar Controller Material: ABS, aluminum Purpose: Reduce the high voltage solar array and charge the low voltage battery pack. Widely used in many fields such as RVs, communication base stations, household systems and field monitoring Maximum Power Current: 100A Load Output Power: 40A (the unit is correct) Installation Wire Diameter: 20m?O (4#AWG) Summit Power of Solar Panels (Maximum Wp): ??1300Wp Battery Capacity Configuration: ??800AH Product Size: Approx. 280 x 190 x 85mm / 11 x 7.4 x 3.3in Battery Float Voltage: 13.8V(12V system), 27.6V(24V system) Battery (Undervoltage) Protection: 10.6V(12V system), 21.2V(24V system) Battery (Undervoltage) Recovery Voltage: 12.6V(12V system), 25.2V(24V system) System Load Loss: ??13mA Loop Voltage Reduction: ??100mV Working Temperature: -10??-60?? Storage Temperature: -30??-70?? Humidity Requirements: <90%, No condensation Temperature Compensation: -4MV/Cell/?? Maximum Open Circuit Voltage of Solar Panels: 18V-48V(12V system), 36V-96V(24V system) Maximum Open Circuit Voltage of Solar Panels (V): ??96V Battery Voltage: 100A 12V System: ??48V(Voc), ??36V(Vmp), 1300W 24V System: ??96V(Voc), ??72V(Vmp), 2600W. Package List: 1 x Controller1 x User Manual1 x Temperature Probe Extension Cable10 x Screw5 x Nut5 x Expansion Screw Sleeve Note: 1. The controller is installed indoors. Prevent exposure to the components and do not allow water to enter the controller.2. The source connection must be kept tight to avoid overheating due to loose connection.3. It is recommended to install a suitable external fuse circuit breaker4. If the system needs to be connected to the inverter, please connect the inverter directly to the battery, and do not connect the load terminal of the controller.5. If there is no display for the first time, please cut off the fuse or circuit breaker immediately and check whether the line is connected correctly