What is a Switch and How Does It Help Me?

What Is an Ethernet Switch? - Cisco

electrical - Can you help me identify the travelers and load - Home Improvement Stack Exchange

Please help me understand my switch wiring (description in comments) : r/homeautomation

Switch & Types of Switches - Electromechanical & Electronic

Universal smart 5 button light switch - can you help me with my project? - SuperHouse Community

Switch Bot - The World's Smallest Remote Robot by Wonder Tech Lab — Kickstarter

U.S. Solid WiFi Switch Module DC5~12V Wireless Remote Voice Automatic Controller

Cessna 172 Skyhawk switch panel - Aircraft - Microsoft Flight Simulator Forums

BSEED Smart Light Switch,1 Gang WiFi Touch Switch with Smart Life APP Control and Timing Function,Black Single Pole Switches Work with Alexa,Google Assistant -(3 Way) Multi-Control Association: : Tools & Home