Wiring diagram of one-way dual-control switch

Connect the live wire to the L terminal (live wire incoming) of a double-control switch, connect the L 1 terminal (live wire outgoing) of this switch to the L 1 of another double-control switch, then connect the L2 of this switch to the L2 of another double-control switch, and then connect the L terminal (live wire incoming) of another double-control switch to the live wire end of the bulb, and connect the zero line to it.

The wiring diagram of the single-control switch is very simple. The L terminal is connected to the incoming live wire, the N terminal is connected to the outgoing live wire and the bulb live wire, and the zero line is directly connected to the bulb zero line. The wiring of the double-control switch is the same as above, just follow the above instructions.