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Anonymous users2024-01-24There are three wires between the two switches of the double control, of which one of the three wires to the head of the bed is the live wire, and the other two are the control wires, so as to realize the dual control of one lamp.
If you can add one more wire, you can do it, otherwise you can't. If you can't add wires, you can only buy a casual sticker with one light and two controls.
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Anonymous users2024-01-23If the doorway switch has only two wires, it is not enough. To add another one.
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Anonymous users2024-01-22Is there any other power source at the door?
The corridor lights need to be switched with dual controls, and the living room lights are dispensable. However, for the sake of convenience, it is recommended to use dual control switches for all.
It was caused by the non-standard operation of the wiring electrician.
Choose a place with dual control, generally a small light in the living room - turn on the light at the door, enter the inside and turn off the small light turned on at the door; Bedroom lights, which are turned on at the doorway or can also be turned off at the head of the bed. Other locations can be used according to their own situation, with only one purpose: to make it easy to use!
There is a control wiring diagram in the switch bag, and those who know a little bit about electrician knowledge will do it. If you don't understand it at all, don't risk it, electricity is dangerous! Random connection, light is not powered, heavy is short circuit, tripping, and even fire, life-threatening, think twice.
The blue line is connected to the midpoint of the dual control switch, the red line is connected to the A line (3 wires are divided into ABC bar), the other end of the A line is connected to the midpoint of the dual control, and the BC is connected to the 1 and 3 of the dual control respectively