**Rewritten Description:** Advanced MPPT scanning technology and efficient temperature management ensure reliable and long-lasting solar DC charging. Oversized heat sink design, combined with a polyurethane and silicon-sealed PCBA, enhances cooling and waterproofing for better solar charging efficiency. Built-in Bluetooth enables easy mobile app monitoring and control. Supports multiple DC load output modes, with options to manually cancel short circuit protection or enforce equalize charge. Simple installation with clear markings and user-friendly buttons for easy operation. **Specifications:** System voltage: 12V/24V No-load loss: 12mA (12V); 10mA (24V) Rated charging current: 40A Rated discharge current: 20A Max PV input: 600W (12V); 1200W (24V) Max solar input voltage: <100VOC Battery compatibility: Sealed, gel, open, and carp batteries Communication: RS485 (MODBUS) with built-in Bluetooth Dimensions: 245 x 180 x 82.5mm Color: Black Material: Aluminum **Package Includes:** 1 x MPPT Solar Controller 1 x English manual *Note: Color may vary slightly due to lighting and display differences. Measurement tolerance: +/- 1-3cm.*