On a three-way, there’s an additional terminal, known as the “widespread.” Power comes in towards the switch about the popular, then two “traveler” wires hook up the first switch to the second around the brass terminals. Remember to often stick to suitable safety safety measures and seek advice from an https://safe-electrical-wiring33210.alltdesign.com/the-greatest-guide-to-smart-light-switch-white-clear-frame-53855525