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.
Install ceiling light without outlet box.
The box must be mounted firmly either by attaching it directly to a framing member or by using a fan rated brace.
If you re wondering how you install a light fixture without an electrical box the short answer is that you don t.
The nec dictates how many wires and clamps you.
In contrast to new work boxes which are screwed to the wall studs before drywall is hung old work boxes hang on the drywall with clamps built in to the box.
In some cases a ceiling outlet is installed to plug in the cord for a hanging light.
Most ceiling boxes are large enough.
For example you would install a remodeling box if you need an additional outlet for a home office or theater.
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.
Installing a ceiling electrical box lets you add a light fixture to a room.
Standard electrical boxes used for wall outlets are installed for ceiling outlets in garages sheds and workshops.
Installing the box is easily done but you must be careful anytime you are working with electrical wiring.
The electrical box or junction box is a code requirement that was established to prevent fires and other electrical accidents.
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.
Most building codes require ceiling fans to be mounted on special fan rated boxes which are made of metal or strong plastic and have deep threaded holes for the mounting screws.
The national electric code requires that all fans 35 pounds and over must be supported with an outlet box or outlet box system that is listed for ceiling fan support.
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.
Check the label to make sure the box is designed to support more than 35 lbs.
The cost to install a ceiling light fan switch isn t much and can save you a lot of work in the future.
Light fixtures that simply protrude from the ceiling or wall without a junction box are a fire waiting to happen.