three-way switch

Two-location light control

A three-way switch is an electrical switch that allows a light or fixture to be controlled from two different locations.

Two three-way switches work together—flipping either one changes the light's state.

Common for staircases, hallways, and large rooms: We installed three-way switches so you can turn off the hall light from either end.

lighting

dimmer

Light intensity regulator

fixture · bulb · lamp · LED · incandescent · fluorescent · halogen · brightness · stairway · hallway

wiring

circuit

Closed electrical pathway

hot · neutral · ground · junction · conductor · wallplate · wire nut · pigtail · splice · continuity

function

on

Touching from above

throw · contact · momentary · maintained · selector · control · neutral position · detent · actuation

Categories
Opposites
number of switching positions/poles

three-way switchtwo-way switch

Circuit allowing dual-point control

four-way switch

complexity of control

three-way switchon-off switch

Binary power controller

smart switch · rocker switch · dimmer switch · timer switch

Family

three, switch, thrice, thirds, thirdly, ways, switches, switched, switching

Familiarity
Top 200,000
Profile
Used worldwide · Timeless · Concrete · Rated G