Heres how to connect a 2 wire light fixture to a 3 wire ceiling box. Each bulb was controlled by a switch in each flat.

How To Hang A Ceiling Light Fixture Family Handyman
Wiring a ceiling light with 2 wires. This keeps you safe from potential electric shock. Remove the old ceiling light. There are three reasons a light fixture may have two wires that arent color coded. The first is that it comes from a country that doesnt follow the same electrical conventions as the united. Inspect the wiring in the outlet box. We live in a 2 unit townhouse that had a flush mount ceiling light in the shared hallway.
Use a phillips screwdriver to unscrew the mounting screws and bring down the light. When we turned on our light switch one bulb lit up when. First map the wires coming out of your electrical box. Map out your wires. Always turn off the power at the breaker or fuse box before you work on electricity. Repeat these connections with the two white.
Turn off the power to the existing light. However its likely that the light fixture was mounted in the middle of a stud cavity which makes mounting a box that can support the weight of the fixture more difficult. Drill through the floor in the correct stud bay and send the wires for the switch and the light up to the switch using the fish tape. Several types of remodeling boxes can do the job but we recommend a 2 x 3 inmetal remodeling box thats 2 12 in deep for fixtures up to about 6 lbs. Secure the wire to the joists with electric staples. Find the main breaker box and turn off either the individual breaker for.
Connect the lead wires from the fixture to the black hot wire in the electrical box by twisting a wire connector to the ends of the lead and hot wires. Connect the electrical wire to your source of power using the pliers and wire nuts and fish it through the joists until it reaches the light switch. The fixture box you are referring to has one 2 wire cable providing the line or power in two 2 wire cables that take power to other locations and one 2 wire that is used for the switch which explains why you see a white wire attached to the other black wires. The white wire is common going back to the.