- LCD display for clear real time monitoring of battery and solar panel status, mode control, load output status, and parameter display. - 7 operating modes for versatile control: charging mode; light control mode; light control + time delay control mode; general control mode; manual control mode; timing control mode; and test mode. - 4 types of voltages automatically identified: automatically identifies DC12V24V, DC36V and DC48V, enabling compatibility with different battery systems. - Large cable connection for easy installation: large area wiring connections that accommodate 16mm cable, improving installation efficiency and reducing losses from current and voltage drop. - Use scenario: off grid solar system with 12/24/36/48V battery banks, where automatic voltage identification and multiple control modes simplify setup and operation. - Use scenario: solar lighting projects such as outdoor lamps or signage that require light control or light control with time delay for automated operation. - Use scenario: maintenance or commissioning tasks using manual control or test mode to verify system performance and behavior.