Switch has multi levels for speed and light. Harbor breeze 3 speed fan switch wiring diagram unique wiring. Nilight 5pin laser on off rocker switch 20a 12v 10a 24v for 5 pin switch wiring diagram 5 pin switch wiring diagram this article explains a 3 way switch wiring diagram and step how to wire three way light switch electrical circuit we have to discuss about what are the three ways for wiring diagram as discussed below and how to connect all the lights and what are the different techniques to.