On A 3-way, there’s an extra terminal, called the “prevalent.” Power is available in on the switch to the common, then two “traveler” wires connect the primary switch to the 2nd over the brass terminals. When you have any considerations, Talbot recommends homeowners talk to a accredited electrician when doing https://smart-light-switches42963.blogproducer.com/41922224/smart-light-switches-fundamentals-explained