On a three-way, there’s an additional terminal, known as the “frequent.” Power comes in to the switch over the typical, then two “traveler” wires link the first switch to the next about the brass terminals. When you have any problems, Talbot endorses homeowners seek the advice of a certified electrician https://jaidenfhhea.blogacep.com/40080991/getting-my-smart-power-point-to-work