Two Way Swicth
A two-way switch, also known as a two-way light switch or a two-way lighting circuit, is a type of electrical switch used to control a single light or a group of lights from two different locations. It is commonly used in staircases, hallways, and large rooms where multiple switches are required for convenience.
The purpose of a two-way switch is to allow the user to turn the lights on or off from either location, regardless of the position of the switch at the other location. This means that you can turn the lights on at one end of the circuit and then turn them off at the other end, or vice versa.
A two-way switch consists of three terminals: a common terminal (C) and two traveler terminals (L1 and L2). The common terminal is connected to the power source, while the traveler terminals are connected to the light fixture. The two switches are interconnected by the traveler wires, allowing the switches to communicate with each other.