Depending on the fixture style you may need to remove a finial from the center of the shade or loosen a series of thumbscrews.
No junction box light fixture.
I just removed two bathroom vanity lights to replace them and discovered that there was no junction box behind either.
Before you begin make sure your junction box can support the weight of the new light fixture.
Remove the light shade cover from the existing ceiling light fixture.
Junction boxes typically hold up to 50 pounds.
For example if you have a light fixture that doesn t need a box for mounting but the wiring connections are not protected by some kind of cover then you can t use the fixture without a junction box.
1 gang box ceiling fan mounting box recessed boxes brackets 3 4 in.
One light was mounted over a stud and the other was right next the a stud.
Metal boxes are suitable for surface mounted installations using metal conduit.
If you are removing an existing fixture.
Or if a fixture meets all of the criteria of a box but lacks a cable clamp don t use it without a box.
Light fixtures that simply protrude from the ceiling or wall without a junction box are a fire waiting to happen.
Octagon and standard size round boxes range from 1 1 2 to 3 inches deep and are the standard box for ceiling or wall mounted light fixtures weighing up to 50 pounds.
The electrical box or junction box is a code requirement that was established to prevent fires and other electrical accidents.
If you have an old light fixture that is not attached to the wall or ceiling with a junction box you should repair the light fixture by removing it installing a junction box and installing a new fixture.
At first i thought i could use old work pancake boxes but the problem is that in both cases the in wall wiring runs directly over the stud.
In some cases the ground wire extends through out the light fixture to junction box locations where the light socket wiring is spliced together.
The ground wire connection should provide a continuous bond throughout the metal components of the light fixture.
Whenever wires are spliced together in a circuit whether it s to hook up a switch or light fixture or simply to extend the length of a wire the splice connections must be inside a covered junction box.
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Typically the ground wire is attached to the metal housing of the light fixture.