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Because there is no zero wire for the switch, a zero wire must be drawn from elsewhere to connect the five holes.
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There is only a live wire and a control wire at the switch, there is no neutral wire, and it cannot be directly connected to the socket.
There are three power supply lines for the bath bomb switch wiring: >>>More
1. The exhaust fan is the most beautiful when installed on the ceiling, and can be in a plane with the ceiling to form a whole; >>>More
Just follow the picture below to wiring it.
Many brands of bath bombs have their own special switches, which are there. >>>More
The one you bought is two dual-control switches.
Dual control switch means: two switches can be installed in different places, and control one lamp at the same time. >>>More