On A 3-way, there’s an extra terminal, known as the “typical.” Power comes in to your switch over the typical, then two “traveler” wires join the first switch to the second on the brass terminals. In addition to light switches, the Bot is usually positioned to turn on other units, https://smartpowerpointsandswitch44321.canariblogs.com/the-greatest-guide-to-smart-power-point-49631014