On a three-way, there’s an additional terminal, called the “common.” Power comes in for the switch within the typical, then two “traveler” wires hook up the initial switch to the next to the brass terminals. The moment equally widespread wires are labeled, utilize a screwdriver to loosen the terminal screws https://electricians-hillmorton77543.spintheblog.com/35177563/how-much-you-need-to-expect-you-ll-pay-for-a-good-smart-light-switch-white-clear-frame