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The light switch is a wire, which cannot be connected to the socket when the power supply is used, and a complete live wire neutral wire + protective ground wire is required.
You need to measure it with an electric pen to distinguish which is the "live line" and which is the "zero line". When the electric pen is tested, the light is the live line, and the non-light is the "zero line". >>>More
These two of you should be the power supply for two sets of lights. You can connect one to the live wire, one to the neutral wire, or you can connect the incoming wires of the two power supplies in parallel.
This wiring is barely usable, but it is unreasonable and unsafe. Because one of the two wires on the lamp is the control line and the other is the neutral line, the connection becomes a series connection method. You must know that all the electricity in the home is connected in parallel. >>>More
Lighting is two wires, buy a four-link switch, it is best to separate, which is conducive to the line and temperature control.