3 Post Light Switch. Three-way light switches control a light from two locations, such as from both ends of a staircase or hallway. I'm trying to set up some smart switches in my house and that requires only single pole switches.
The reason I need it is for a light which is either on, off or on a PIR. Otherwise, this may confuse you a little. Outlet Wiring Light Switch Wiring Three Way Switch Third Way Circuit Floor Plans Diagram Ads Cape Cod.
Streetlights and light posts are common photoelectric applications.
This makes them ideal for controlling long hallways.
How to Install Outdoor Light Fixture on Brick. A programmable timer switch for LED lights eliminates the unintentional waste of electricity costs by switching off lights during the day. The switch shown here has silver and gold screws opposite one another and a bronze screw in the third position.