Summarize 4-Way Wiring Principles

What happens here

The lesson concludes with a concise summary of the 4-way switch wiring concept: 'Power in, light out. So two 3-ways and a 4-way.' This reiterates the essential components and their roles in creating a multi-location lighting control system. The key principle is that regardless of how many 4-way switches are in the middle, the circuit must always be bounded by two 3-way switches.

Goal: Consolidate the understanding of 4-way switch circuit requirements.