The electric power production dispatching building of State Grid Wuhan Power Supply Company has a total of 25 floors. This time, the corridor, hall and other public areas on each floor will be renovated for lighting energy conservation. The whole project will be provided with the drawing design by the professional engineers of Shanghai DICON to guide the construction wiring and system commissioning. Since the building is in operation, the entire transformation process cannot affect the users' work, so it is selected to construct wiring at night, debug at night, and put into use when working in the daytime. After the reconstruction of each floor is completed, the whole building will be subject to system joint commissioning finally. After the transformation, the following functions can be realized: 1) The corridor lights are combined with the illuminance and human body induction to control. When the sunlight is sufficient, nobody turns on the lights. When the sunlight is normal, someone turns on only 50% of the lights. When the sunlight is insufficient, someone turns on all the lights. 2) Each elevator room is equipped with a touch screen panel, which can realize manual/automatic mode switching. Under manual mode, human body sensing control fails, and users can open different light scene modes at will with one key; 3) In the central control room, the lighting of the public area of the whole building can be managed through computers. Once abnormal or special conditions are found, the lights can be quickly turned on remotely.