If you re wondering how you install a light fixture without an electrical box the short answer is that you don t.
How to install a ceiling light fixture box.
Cut out the traced hole with an oscillating saw.
If your fixture weighs more you may need to install a junction box that s designed to support heavier light fixtures.
Once again the easiest way to install a new electrical box in an existing ceiling is to use a special fan brace and box made for retrofitting.
Junction boxes typically hold up to 50 pounds.
Trace the electrical box for the switch and cut it out the same way as the mounting box.
Lower the fixture base and remove the electrical tape or wire nuts from the black hot wire white neutral wire and if present green ground wire.
Remove the light bulb cover and bulbs from the fixture.
Devise a lighting plan.
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Trace the mounting box on the ceiling where the light fixture will be mounted.
It should be 48 from the floor.
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Box sizes but if you encounter a round box that s only 1 2 in.
Before you begin make sure your junction box can support the weight of the new light fixture.
Finally install the correct bulbs turn the electricity back on and admire the radiance of your new ceiling light fixture.
The electrical box or junction box is a code requirement that was established to prevent fires and other electrical accidents.
How to hang a ceiling light fixture project overview.