How to install a junction box for a light fixture is fairly easy and should always be done with the power off.
Install a ceiling light box.
Then screw in the light bulbs that may be included in your package.
Installing a light fixture or outlet in the ceiling requires an electrical junction box to hold the wire connections and the fixture or device.
The electrical box or junction box is a code requirement that was established to prevent fires and other electrical accidents.
Installing a ceiling electrical junction box.
An easy solution is to install a fan brace box available from home centers and hardware stores that s designed to be installed without cutting any additional holes in your ceiling.
It should be 48 from the floor.
Cut out the traced hole with an oscillating saw.
Restore power to the box and enjoy the new light in your room.
Installing a ceiling electrical box lets you add a light fixture to a room.
If you have access from above you can make and install your own support brace using a length of 2x4 lumber nailed to the ceiling joists on both sides of the box location image 2.
Trace the mounting box on the ceiling where the light fixture will be mounted.
If you re wondering how you install a light fixture without an electrical box the short answer is that you don t.
If your light fixture weighs more than 50 lbs it has to be supported independent of the electrical box.
From below use wood screws to attach the ceiling box securely to the brace.
Position the brace directly above the ceiling box.
Installing the box is easily done but you must be careful anytime you are working with electrical wiring.
Determine a location for the light switch.
Trace the electrical box for the switch and cut it out the same way as the mounting box.