2 Way Light Wiring Diagram. Consider the above 2-way switch wiring diagram which has been used to control a bulb in staircase. You will see that there is a hot wire that is then spliced through a switch and that then goes to the hot terminal of the light.

Connect the blue wire with the brown slewing coming from the light to the L2 terminal together with the 3 CoreEarth cable grey wire. As you see in the 2 way switch diagram below you will find that the phaselive is connected with the common of the first 2-way switch. This is the first method to make a 2-way switching connection this is the old method.
Consider the 2-way switch wiring diagram above that is used to control the bulb in the stairwell.
2 way light switch with power feed via switch two lights Tags. Power feed via the light fixture. 2 way switching means having two or more switches in different locations to control one lampThey are wired so that operation of either switch will control the light. A two way switch has 3 terminals.