On A 3-way, there’s an extra terminal, known as the “common.” Power is available in into the switch to the widespread, then two “traveler” wires connect the 1st switch to the 2nd within the brass terminals. To get over the safe aspect, test the switch to verify it not turns https://smartpowerpointsandswitch86307.blogsvirals.com/33897593/the-2-minute-rule-for-p-hub-system