Light Socket Wiring Diagram. In this diagram power enters the fixture box. And when the switch is on only the tab at the bottom of the socket is hot but if the wiring is reversed and the power goes to the threaded socket the threaded socket is always hot whether the switch is on or off.
This is not always the case. Easy to read wiring diagrams and instructions for wiring lamp switches including 2 bulbs 3 way sockets and vintage floor lamps. A 3 way lamp requires a 3 way bulb and socket and a 3 way switch.
This diagram illustrates the wiring for a bedside lamp with two sockets.
The threaded socket is the neutral. And when the switch is on only the tab at the bottom of the socket is hot but if the wiring is reversed and the power goes to the threaded socket the threaded socket is always hot whether the switch is on or off. Finally connect all remaining wires which will include the ribbed side neutral wire of the incoming lamp cord all the white neutral cords from the 3 side arm sockets. The cable that comes from the switch to the light has a black and a red wire both of these are live wires.
