Feature:1. WITH POWER OFF MEMORY: Automatic identification of 12V 24V system voltage, there are a series of parameter settings and power off save function, so that no need to repeat settings. Using temperature compensation, charging parameters can be automatically adjusted2. INCREASE BATTERY LIFE: Using the upgraded 3 level PWM charging algorithm to equalize the battery regularly or when over discharging, can effectively prevent non equalization and vulcanization of battery, thus prolonging the service life of battery3. LARGE LOAD START: A variety of load operation modes are available, which is convenient for the product to be applied to different types of loads. With the advanced load start method, large capacitive loads can be started smoothly. With industrial grade design, the product can work well under various harsh conditions run4. MULTI PROTECTION FUNCTION: Solar charge controller provides overcharge, overdischarge, overload protection, as well as short circuit protection, TVS thunder protection5. SIMPLE OPERATION: The controller provides a dot matrix graphic LCD screen and a human machine interface with 2 buttons. The user friendly design of the browser and dynamic interface ensures the convenience and intuitiveness of operation6. OPTIONAL COMMUNICATION FUNCTION: Come with an RJ12 data port, output TTL232 level or Bluetooth signal, can be used with the host computer monitoring software or mobile phone APPSpecification:Item Type: Solar Charge ControllerMaterial: ABSCurrent: 50AVoltage: 12 24V automaticSolar Input Voltage: Less than 55VPower: 12V 750W, 24V 1500WUSB Output: 5V1AOperating Temperature: -25 to 55Protection Class: IP30.Package List:1 x Solar Charge controller1 x User ManualNote:1. When connecting to a 24V system, the terminal voltage of the battery board may exceed the safe voltage of the human body. If manipulation is required, insulated tools should be used and hands must be dry.2. If the battery is reversely connected, the controller will not be damaged, but there may be negative voltage output at the load end, which may damage your load equipment. Take care to avoid this.3. In a 24V system, if one end of the battery or solar panel is reversed, the controller is likely to be damaged.4. A large amount of electrical energy is stored in the battery. Therefore, a short circuit of the battery cannot occur under any circumstances. We recommend connecting the fuses on the battery in series.5. The battery may produce flammable gas, so keep away from sparks.6. Please ensure that children keep away from batteries and controllers.7. Follow the safety advice given by the battery manufacturer.