2 Way Light Switch Wiring. The electricity flows from the hot wire black through the 2-way switch shown in off position and then to the light and returns through the neutral wire white. It is a standard single pole switch with three terminals.
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. This is the first method to make a 2-way switching connection this is the old method. So what have we accomplished.
A two way switch has 3 terminals.
A 2-way switching circuit requires 2 SPDT switches. There will be a Com common terminal a L1 terminal and a L2 terminal. Two way switching allows you to control a light from two locations. 2-way Switch Wiring using Two-wire control.