What Wires Go to What When Hooking Up a Light Fixture Dec 17, 2018Light fixtures with more than one lamp may have a pair of black and white wires for each lamp. These connect to the black and white wires in the electrical box with the provided larger wire nuts. Motion lights have black, white and red wires. Black and white always connect to black and white. Lamp Wires - Wire - The Home Depot The Southwire 100 ft. Black 16/2 Lamp Wire The Southwire 100 ft. Black 16/2 Lamp Wire can be used inside of your home for lamps, household fans and clocks. You can also use this wire for internal wiring of air conditioning and refrigeration equipment.