Features MPPT solar charge controller: Compared with normal solar charge controller, this MPPT controller could increase efficiency by 10 percent -30 percent . Automatic focusing MPPT tracking charging, high charging efficiency, non-stop detection during charging, bidirectional focusing tracking. Large-screen LCD display, adjustable charging and discharging parameters. This MPPT controller has perfect SOC function, control charge current, and supply power to the loads. Prevent the battery from over-charging, over-discharging and reverse charging to solar panels during nights. 1. Always keep the battery on fill voltage condition. 2. Prevent the battery from over-charging. 3. Prevent the battery from over-discharging. 4. Prevent the battery from reverse charging to solar panels during nights. 5. Reverse Polarity Protection for Battery 6. Reverse Polarity Protection for Solar Panels 7. When the battery voltage is low, the controller will automatically cut off the load from the system. If the voltage of battery is back to normal and the load will restart working. 8. Thunder protection 9. According to the battery voltage grade, the controller can automatically set charge-off voltage, the load-off voltage, the load- restore voltage. (The parameter is default under 25 condition, locked by the CPU procedure, cannot adjust.) 10. The controller will automatically compensate the temperature of the charging voltage according to the changes of ambient temperature. Applicable batteries: various lead-acid batteries System voltage: 12V/24V self adaptive Current output: 30A/60A/100A Voltage: 12V/24V Power supply: solar energy Package Included 1 x Solar Panels Battery Charge Controller 1 x User Manual Note: Due to the light and screen setting difference, the item's color may be slightly different from the pictures. Please allow slight dimension difference due to different manual measurement.