Single Light Switch Wiring Diagram L1 L2. Each of the gangs or switches above in fig 2 of which there are two work like this fig 3. When the switch is on both terminals are connected together.
Switch wiring shows the power source power in starts at the switch box. Want to turn a lamp on with a light switch. There are two terminals in a one way light switch.
Although technically it doesn t matter which way round you connect the wires it is best to stick to convention and connect the permanemt live from the supply to com and the switched live to the lamp.
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. When l1 is on l2 would be off. Two way switching means you can switch the same light fixture from two switches that are located in different sides of a room. The source is at sw1 and the hot wire is connected to one of the terminals there.
