**Rewritten Description:** Advanced MPPT scanning technology and efficient temperature management ensure reliable and long-lasting solar DC charging. Oversized heatsink design with a polyurethane-silicon PCBA coating enhances cooling and waterproofing for better charging efficiency. Built-in Bluetooth enables mobile app monitoring and control. Supports multiple DC load output modes with manual options for disabling short-circuit protection and enabling 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: 30A Rated discharge current: 20A Max PV input: 450W (12V); 900W (24V) Max solar input voltage: <100V Battery compatibility: Sealed, gel, open, lead-acid Communication: RS485 (MODBUS), Bluetooth Dimensions: 245 x 180 x 82.5mm Color: Black Material: Aluminum **Package Includes:** 1 �� MPPT Solar Controller 1 �� English Manual *Note: Color may vary slightly due to lighting or display differences. Measurement tolerance: ��1-3cm.*