If you want to make a double control at the head of the bed, you need to lead a few wires to the swi

The embedded pipe wears steel wires, wires, bundle wires, traction wires, wiring, single-open and double-control switches are similar to single-pole double-throw, and double-open double-control switches are similar to two single-pole double-throw. From the existing switch inlet line to the live wire, connected to the bedside switch live wire inlet line, live wire out to the control line of the bedside lamp.

Yes, find a decoration company, there are designers to help you design for free, water and electricity can be designed according to your requirements.

It is recommended to check the line first, and there is a possibility that if it is dual control, of course, both sides can be controlled.

Comrade, brother. Looks like you're not very good at physics in junior high school. That's basic common sense.

Because the lamp has not yet been incorporated into the air switch circuit, it is not affected by the air switch. It is recommended to change the light circuit to the wall switch circuit. Second, it may be empty and tripped, but irregular, there is no phase disconnection, and the light is still charged although it is not lit. It is recommended that the air switch cut the double wire, and the light switch cut the phase wire.