110 House Wiring Light Fixture. Jan 24 18 0209 PM. Want to turn a lamp on with a light switch.
The exact purpose of a red wire for a light fixture can vary. Three wire supply cables generally carry red and black hot wires of 110- to 120-volts each with a single white neutral wire. Except in rare cases it is a hot wire or a switched hot wire.
For example if you have a 120v light you can use any light fixture as long as you can screw in a 120v light bulb and if you have a 12v light you can use any light fixture as long as you can screw in a 12v light bulb.
In parallel circuit adding or removing one lamp from the circuit has no effect on the others lamps or connected devices and appliances because the voltage in parallel circuit is. Get free estimates from electricians near you or check out our pricing guide. Thread the long ground wire through the hole in the top of the special green wire connector and splice all the ground wires by holding them together and twisting the connector clockwise until its tight. This will cut power to that particular circuit and prevent the risk of electric shock.