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Anonymous users2024-01-24You need to change the switch at the door to a single open and double control, and then the switch box at the door runs three lines to the switch box at the head of the bed.
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Anonymous users2024-01-23If that's what you say, it's going to be a hassle.
A single open and double control is installed at the door of the bedroom, and a double open and double control is installed at the head of the bed in the bedroom.
The connection method of the duplex switch, to be connected to the above figure, the connection method upstairs is the old connection, there is considerable danger, such as the switch failure is easy to short circuit, the advantage is that there are few wires, and it can be easily connected to the socket. The biggest defect is that sometimes the firing wire cannot be disconnected in the lamp head, and it is critical for maintenance personnel to repair and replace the safety of the lamp. Therefore, it is no longer taught in the teaching of electricians. >>>More
First of all, there must be pre-installed wires from the position of the switch at the door to the position of the switch at the head of the bed.
A single-open and double-controlled switch at the door and a double-open and double-controlled socket switch at the head of the bed, how to wire to control one on both sides. >>>More
You mean, dual control switches, two switches control one light. The switch with five holes must be a single-open and double-control switch, and the single-open and double-control switch at the door form a double control.