Electrical 3 Way Switch Wiring Diagram 2 Lights 2 Switches. How do three way switches work? Electrical outlet boxes can have numerous NM cables going in and out.
What wires do you have in each of the boxes? to be honest - a lot of wires inside box. Three-way switches often control one light fixture at both ends of a hallway. Three-way switches allow for controlling a light fixture from two separate locations, these are usually used at the top and bottom of a flight of stairs or at two different entrances to a room.
Switch dropsfrom ajunction box Thereisachance thatifyourhouse hastheseold wiringcoloursthe switchdropsmay befromaloopin loopoutradial lightingcircuit.
Electrical outlet boxes can have numerous NM cables going in and out.
The best example of this would be at either end of a long. Both would be three way and would treat each. Making diagrams for these is not simple, so if you describe or draw your current wiring diagram (or Andrew seems to want two switches on each end.