In this video, Mark Donovan teaches us how to wire a light with a 3 way switch. Before starting, make sure the power is turned off from the main circuit panel first, and you test to make sure it's off. You will have two switches for the same light fixture. For a 15 amp circuit, you can use 14-2 and 14-3 wire. These wires will have a black, white, and red wire. The 14-2 wire just has a lack and white wire with a copper ground. The power coming into the base should have all the wires that connect together and connect to the light figure itself. After you install this, the lights will work both ways!