4 Way Switch Wiring Diagram With Multiple Lights. To add a second light which is switched with the first one the switched line neutral and earth need to be extended to the second light. Fig 2 below shows how we achieve this configuration.
In this setup just add another bulb and connect all. At times the cables will cross. Lamp switch wiring diagram.
The two 4 ways are located between the two 3 ways and the traveler wires run from sw1 to t1 on the first 4 way.
Connect the black wire coming from the first two way switch to the l1 terminal connect the grey wire to the l2 terminal and connect the brown wire to the c common terminal. Feb 18 2017 clear easy to read wiring diagrams for 3 way and 4 way switch circuits to control multiple lights. Power coming to the 3 way switch first with multiple lights. But it does not mean connection between the cables.