Understanding Three-Way Electrical Switches OverviewVariationsSymptomsTypesNamingOperationSafetyIssuesUseA three-way wall switch is a common type of light switch that makes it possible to control a ceiling light or other electrical fixture from two different locations in a room. In a hallway or large room, for example, installing three-way switches at both ends lets you turn the light fixture on or off from both locations. Three-way switches are always used in pairs and include special wiring connections.See more on thespruce Wiring Diagram For 3 Way Light Switch | Electrical wiring Wiring diagram for 3 way switch take a closer look at a 3 way switch wiring diagram. pick the diagram that is most like the scenario you are in and see if you can wire your switch! Fine 3 Way Wiring Multiple Lights Photo Simple Diagram Within Two To One Switch - kuwaitigenius. 3 way switch setup . 3 Way Switch Wiring Diagram - Easy Take a closer look at a 3 way switch wiring diagram. Pick the diagram that is most like the scenario you are in and see if you can wire your switch! This might seem intimidating, but it does not have to be. With these diagrams below it will take the guess work out of wiring. Interested in Electrical Blueprint Symbols Glossary - House Plans Guide Electrical Blueprint Symbols Glossary. Below is a figure showing the most often used residential electrical blueprint symbols. 3-Way Switch: A bit confusing but this means there are two switches in the home to control the same item (typically a light or group of lights).