Before proceeding an important component called a two way light switch is the main element of the 2 way switching irrespective of the type of wiring used. A metal light switch must be earthed as seen below.

Wiring Way Switch Luxury Model Electricstwo Lighting And How
Wiring a two way light switch for one way. With a pair of 3 way switches either can make or break the connection that completes the circuit to the light. It is not uncommon for a circuit to be configured so that two wall switches in a single double gang box control two different light fixtures. The l2 terminal is unused. The three terminals are usually named com l1 and l2 but sometimes com 1 way and 2 way are also used. Two way switch can be operated from any of the switch independently means whatever be the position of other switchonoff you can control the light with other switch. You have an incoming hot wire black going to one screw it does not matter if you use the brass or silver screw on the side of the 2 way switch and a black wire from the other screw on the 2 way switch going to the load light ceiling fan etc.
It is a standard single pole switch with three terminals. Wiring a 3 way light switch. There are two methods of making 2 way switching connection one is 2 wire control and another is 3 wire control. Connect the line brown wire coming from the light together with the 3 coreearth cable black wire in to the l1 terminal of the two way switch. 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. This cable consists of three cores brown grey and black which are all line colours and an earth wire.
The essence of the wiring configuration is for one hot feed wire entering the switch box to be split so that it feeds both switches which in turn feed hot wires in cables that lead out to two separate light fixtures. Notice the black wire is the only wire that we are controlling through the 2 way switch. How to wire a one way lighting circuit in this tutorial i show how to wire a one way light switch i show how a 1 way and 2 way light switch works i explain how to wire a ceiling rose how to. For wiring a two way switch 3 coreearth cable is used. A two way light switch can also be used in in place of a one way light switch in this instance the red wire from the feed cable is connected to the common c terminal and the red wire going to the light is connected to the l1 terminal.