One Light Controlled By Two Switches

One Light Controlled By Two Switches. If you want more than two switches to control the same light, you can use any number of "four-way switches" plus two three-way switches. It is used to control electrical equipment and appliances from two, three or even more different locations by adding more intermediate switches.

Electrical Engineering World: 3 Way Switch (Multiple Lights) (Jared Stanley)

It is also used in staircase wiring connection where a light point can be control from two or more different places. The lightbulb turns on if Basically, you use the visible light switches to control a relay that serves as the actual light switch. A standard switch controls the light fixture, and a time-delay switch controls the vent fan.

If you want more than two switches to control the same light, you can use any number of "four-way switches" plus two three-way switches.

First of all we need to go over a little terminology so you know exactly what is being discussed.

Electrical Engineering World: 3 Way Switch (Multiple Lights)

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This arrangement is often found in stairways, with one switch upstairs and one switch downstairs or in long hallways with a switch at. You can by all kinds of remote controlled switches, transmitters, and receivers, etc. When two switches control a single light (such as at either end of a hallway) electricians, here, call them three way switches.