lighting - Lightswitch: does the arrow over tilde represent "common" and how should it be wired - Home Improvement Stack Exchange
Multiway switching and switches - UK and US terminology | Light wiring
Light switch - Wikipedia
Wiring Diagram 2 Way & Intermediate Switching of a Lighting Circuit 3 Plate Method Connections - YouTube
light switch | Light wiring
Multiway switching - Wikipedia
Can anyone identify what kind of light switch I have? L1 and L2, top and bottom, on both light switch modules. It's for a two-gang light switch in my bathroom that I