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There is no need for the living room, but it is convenient to install a double control switch in the master bedroom, and a switch at the head of the bed.
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The possibility of installing a double control switch in the living room, there are double control switches that can be installed at the entrance of the door and the evening rest point, and then the double control switch between the upstairs and the living room, the specific situation has to be decided according to the particularity of the living room and the characteristics of the site.
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This is necessary because the dual control switch can control multiple lights.
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The bedroom must be installed, the living room depends on the situation, and the bedroom can only be reached through the living room from the entrance door.
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Of course it's necessary. Very convenient.
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If the living room is very large, you can also install one, press less.
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Generally not needed.
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It depends on personal habits; Or does it depend on your room type, and does it pass through the living room when you enter the bedroom?
The second bedroom can also be installed with one light and two controls, which is very convenient to use.
Tall, 1 meter to 1 meter 1, it is installed next to the head of the bed and can be touched by reach.
A single control switch means that a switch controls a lamp, and a double control switch refers to the opening and closing of the same lamp in two different places, such as the living room, stairs and other positions, so that we do not have to go back to the bedroom in the dark after turning off the lights (entrance door), which is very convenient. There are two binding posts behind the single-control switch. There are three binding posts behind the dual control switch. >>>More
It is necessary to connect two wires, and these two wires are one through and one is disconnected, because the dual control is in the form of breaking and opening. The live wire is connected to the switch at the door, and a wire is connected to the head of the bed to the light (switch control line).
Find an electrician to help you get it directly, it is not recommended to get it yourself, it is not safe.