Or flip a switch at the bottom of the stairs, and then again at the top. The next person, coming from either direction, must ...

Diagram 1: Here's an example of a basic three-way switch layout, the type you'll hopefully deal with in your home. Steve Conaway/CNET If your lighting setup doesn't jive with these two pictures, I ...

Learn how to install 3-Way Smart WiFi light switches with this step-by-step video. Please consult a certified electrician if you have any questions or concerns. Every wiring setup is unique, so be ...