See the four-way light switch wiring diagrams above and below. Follow the switch manufacturer's instructions and wiring diagram, as the connections on the switch vary by manufacturer.. Learn how to wire a 4-way light switch with a detailed diagram and step-by-step instructions. This article will guide you through the process of installing and connecting the necessary wires to make your 4-way light switch function properly.

Here are some wiring diagrams: 4-way switch wiring diagram power at light In this setup, we are connecting the live (black) wire coming from the common terminal of the second 3-way switch to the black terminal of the first bulb. The same wire goes to the black terminal of the second bulb and you are using more bulbs, connect it to them as well.. The wiring diagrams on this page make use of one or more 4-way switches located between two 3-way switches to control lights from three or more points. For 4-way multiple light diagrams see these, for 3-way switch diagrams see these.