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.
Vanity light fixture no junction box.
People aren t always careful about placing electrical boxes especially when installing fixtures with wide bases.
The boxes made without metal are pvc or plastic.
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.
How to center a light fixture when the junction box is off center.
Choose from many junction box sizes to find the one that best suits your project.
How we moved our bathroom vanity lights by moving the junction boxes.
Many local building codes require metal junction boxes because they are durable and ensure long lasting performance.
Metal boxes are suitable for surface mounted installations using metal conduit.
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.
Or if a fixture meets all of the criteria of a box but lacks a cable clamp don t use it without a box.
Metal boxes are usually made of aluminum steel or cast iron.
Video that walks through steps on placing light cutting out drywall for junction box installing junction box and light.
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Light fixtures that simply protrude from the ceiling or wall without a junction box are a fire waiting to happen.
They provide much more room for wiring than shallow round pan boxes and can be used as junction boxes.