Four-way Switches Make the Connection

So what is a four-way switch? Could it be a switch that toggles up, down, and side to side? Well, not exactly. Four-way switches bridge the gap between three-way switches. In fact, they provide the third switching location for controlling lighting circuits. By adding additional four-way switches, you'll be able to control lighting from many different locations. Switching can be accomplished from many locations when you use four-way switches.

Photo: Timothy Thiele