Two-way Switch Vs Three-way Switch: What’s The Difference?

Light switches are just light switches, right? You flick it or click it or turn it and the light comes on, and maybe a fan spins to life. It seems a pretty simple concept.

But if you are designing a new space, or upgrading an older electrical system, you might find yourself answering questions and deciding between a two-way or a three-way switch.

Here is what you need to know.