How does a light switch turn lights on?
Click Command
How does a light switch turn lights on?
You flip a switch and the room floods with light. Click — darkness. Click — brightness. It feels like magic, but inside your wall, something beautifully simple is happening.
Electricity is already waiting in the wires behind your wall, like water sitting in a hose. It wants to flow to the light bulb, but it needs a complete path — a loop from the power source, through the bulb, and back again.
