The single switch controls a single light or lighting circuit. These are often used on a stair case.

3 Way Switch Wiring Diagram Multiple Lights H1 Wiring Diagram
How to wire multiple can lights to a 3 way switch. In other words a 3 way switch is made up of one light thats controlled by two separate switches. 3 way switch diagrams for multiple light fixtures. In this circuit two light fixtures are shown but more can be added by duplicating the wiring arrangement between the fixtures for each additional light. A 2 way switch means there is another switch controlling the same light. The steps above describe installing a 3 way switch and provide a 3 way switch diagram utilizing one light fixture. With a pair of 3 way switches either can make or break the connection that completes the circuit to the light.
The hot source is connected to the common terminal of sw1. Two 2 wire cables c3 and c4 run between the fixtures and a 3 wire cable c2 runs from the second fixture f2 to the second 3 way switch sw2. It is true that there are several wiring configurations for wiring 3 way light switches and all of the wiring configurations will depend on where the incoming circuit power is located and once that is identified the rest of the three way wiring connections are straight forward. 3 way switch multiple lights between switches below ive shown two variations of wiring multiple lights between 3 way switches. This option actually requires you to run two romex lines between the lights. The answer to how it works is to have an extra hot wire that runs between the two switch boxes.
You can also do a home run configuration by feeding all the cables to the switch and connecting them with a pigtail. Wiring a 3 way switch with multiple lights. Wiring a 3 way light switch is certainly more complicated than that of the more common single pole switch but you can figure it out if you follow our 3 way switch wiring diagram. Option 1 is for power into the first switch wire to the lights and lastly wire from the light to the other switch. Wiring multiple lights on a 3 way switch. If you intend to add multiple lights with a 3 way switch use the 3 way switch for multiple lights diagram.
Wiring a 3 way light switch. The easiest way to connect multiple lights to one switch is to daisy chain the lights which means to connect them together and attach just one of the lights to the switch. Wiring a 3 way switch isnt that difficult. The most important rationale is that there are several ways that a three way switch can be wired. Here the source is at the first switch sw1 and 3 wire cable runs from there to the first light l1.