Function: 1. Safer Charging: Uses a 3-stage PWM charging algorithm to ensure balanced battery charging and discharging, which can extend battery life. 2. Auto Operation: Enables automatic recognition of 12V and 24V systems as well as automatic adjustment of charging parameters, also features temperature compensation. 3. Work Safety: Can provide overcharge protection, over-discharge protection, overload protection, short-circuit protection, etc. for safety. 4. Better Display: The graphic LCD screen allows for better display for easier operation, while the clear operation panel provides you with more convenience. 5. Easy to Install: Comes with a lightweight and a compact size, the simple installation can be quickly completed within minutes. Specification: Item Type: Solar Charge Controller Material: ABS Current: 10A USB Output: 5V 1A Operating Temperature: -25 to 55°C Protection Class: IP30. Package List: 1 x Solar Charge Controller 1 x User Manual Note: 1. When connecting to a 24V system, the terminal voltage on the battery board may exceed the safe voltage of the human body. If operation is required, insulated tools must be used and hands must be dry. 2. If the battery is connected in reverse, the controller will not be damaged, but there may be negative voltage output at the load end, which may damage your load equipment. Be sure to avoid this. 3. In a 24V system, if one end of the battery or solar panel is connected in reverse, it is likely that the controller will be damaged. 4. A large amount of electrical energy is stored in the battery. Therefore, battery short circuit must not occur under any circumstances. We recommend connecting the fuses on the battery in series. 5. The battery can produce flammable gas, so keep it away from sparks. 6. Make sure children are kept away from batteries and controllers. 7. Follow the safety advice from the battery manufacturer.