How to turn off the lights in Humen Lan Ou Hotel?

There is a room lighting master control system at the bedside of the hotel. When you sleep, you can directly press a switch and turn off all the lights. So you don't have to turn off all the lights. At present, every room in the hotel design has a room building lighting control system. After staying in the hotel, insert the room card into the electric trough and turn on all the lights on the left and right parts. On the control panel of the bedside, there will be switches for lights in various parts, and there will be a general meeting. If you have a rest, you can directly press this switch, and all the lights in the room will go out.