Legrand 3 Way Switch Wiring Diagram. Three-way switches allow you to control lights from two locations - from two doorways to a room, from the top and bottom of a stair, from house and garage, etc. Don't forget the Wire, Solder, Shielding & Supplies.
The wiring method will depend on whether your power goes to the switch first or the light first. Three-way wall switches control a light fixture from two locations in a room. Click diagram to view full size.
In this video I will show you how to wire a three way switch the easy way.
Installation of the Smart Switch is easy and requires little tools and set-up time.
According to job specifications, the boxes in this demonstration are. So, to turn the light on, she carefully negotiates the stairs to the top, and flips on the switch. The switch has: - two red wires (one is tagged with red tape also).