If you want to install a ceiling fan then you will need to get a box rated to hold the weight of a ceiling fan or you will want to add some additional bracing to hold the ceiling fan.
Ceiling light box installation.
Some of these wires may be wired to different circuits than the fixture you re working on.
Turn off the power.
How to install a junction box for a light fixture is fairly easy and should always be done with the power off.
If your light fixture weighs more than 50 lbs it has to be supported independent of the electrical box.
The electrical box or junction box is a code requirement that was established to prevent fires and other electrical accidents.
Installing a ceiling electrical box lets you add a light fixture to a room.
Use a circuit tester or turn off the power to the whole house to ensure that all the wires in the box are dead.
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Installing the box is easily done but you must be careful anytime you are working with electrical wiring.
You may find several pairs of wires in the ceiling box.
If you re wondering how you install a light fixture without an electrical box the short answer is that you don t.