How to wire Dingyun time-controlled lighting module?

Time-controlled switch connects left 1 to live wire, left 2 to neutral wire, left 3 to left 1 (measured by multimeter), and left 4 to control lighting (or control relay). The lighting module is used to control the centralized operation of building lighting electronic control, and realize the timed, automatic and humanized intelligent control of the lighting control part in the building, so that the electronic control of the whole building is centralized in the control room, which is usually used in public places such as building lighting, hotel lighting, school lighting, hospital lighting and subway lighting.