The solar charging uses a series charging control method to increase the charging efficiency by 3%-6%. At the same time, the controller MCT charging function tracks the maximum current of the solar panel in real time, and the charging method is more efficient. Features: 1. With lightning protection. 2. With temperature compensation. 3. Power devices for reliable performance and long life. 4. Undervoltage protection, overvoltage protection and overcurrent protection. 5. Battery reverse connection, solar panel reverse connection, battery reverse discharge protection. 6. The fully sealed and completely waterproof design makes the controller's stability and reliability greatly improved. 7. The all-aluminum casing and the multi-edge bottom plate design increase the heat dissipation area, so that the entire controller is in an optimal heat dissipation state for a long time. 8. The reverse connection protection of the wind turbine battery adopts a unique circuit design, which removes the traditional reverse-connected fuse, which greatly improves the reliability and practicability of the whole system. Specification: Condition: 100% Brand New Item Type: Wind and Solar Hybrid Controller Color: Black Size: Approx. 13 * 8.2 * 2cm / 5.1 * 3.2 * 0.8in Weight: Approx. 384g / 13.5oz Self Power Consumption: The Static Average Power Consumption : Approx. 13mA. During Charging And Discharging : Average 15 mA Maximum Discharge Current: 20A Working Environment Temperature: -35-75 C Charging Mode: MGT Mode ( Tracking Maximum Current) Package list: 1 * Wind and Solar Hybrid Controller Wiring: 1. First connect the positive pole of the load, battery and solar panel to the red line of the controller. 2. Reconnect the negative pole of the load. 3. Then connect the negative pole of the battery to the negative pole of the battery of the controller. At this time, the controller performs self-test. After the self-test passes, all the indicators are fully illuminated, then the remaining indicators are off and the power indicator is on. After 6 seconds, the load light is on, indicating that the discharge is normal. 4. Connect the negative pole of the solar panel to the negative pole of the solar panel of the controller. The charging light of the controller lights up, the discharge lamp goes out, and the charging system is normal. If you are wiring at night, the control will not enter the charging state, and the discharge state of the third step will be maintained until the discharge timing of the controller is completed. 5. Connect the three-phase AC voltage input line of the controller to the three-phase voltage output line of the wind turbine. After the entire wiring is completed, please wrap the connector with waterproof tape to avoid water ingress. Charging Indicator (charge) (green) 1. No Light, The Battery Is Not Charging. 2. Always On, The Battery Is Charging Mct (tracking Maximum Current). Discharge Indicator (discharge) (red) 1. Does Not Light, The Load Output Is Turned Off. 2. Is Always On And The Load Output Is On. 3. Slow Flashing, Battery Undervoltage Indication. 4. Flashing, Overcurrent Protection Indication, And Cutting Off The Load Output.