Fabulous 3 Way Switch
Three way switches control a light fixture from two locations in a room.
3 way switch. How to wire 3 way light switch in this video we explain how three way switching works to connect a light fitting which is controlled with two light switches. For example a long hallway or stairway might use a pair of three way switches at each end so that lights can be turned on when approaching one end of the hall or stairway then shut off from the other end. 3 way switch is a multiway switching or interconnection of two or more electrical switches to control an electrical load from more than one location.
Three way switches are commonly used to control a light fixture from two different locations. The three way switch is a variation of the standard single pole switch which controls a light only from one location. Electrically a typical 3 way switch is a single pole double throw spdt switch.