How to connect the single control switch LL 1L2?

1. First, you can see that there are three wiring holes on the back of the switch;

2. The general single-control switch has only two wiring holes;

3. The three-hole switch is a single-open double-control switch. On the edge of the wiring hole, you can see that the hole is marked with the words "L 1, l, L2". Connect wires according to the method of "L incoming line, L 1 outgoing line, L2 connection";

4. After connection, cover the switch housing.

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