Many local building codes require metal junction boxes because they are durable and ensure long lasting performance.
Light fixtures that do not require junction box.
How to center a light fixture when the junction box is off center.
Light fixture wiring if the new light fixture has the wire leads hanging out of the housing and there is no provision for internally containing and.
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.
Or if a fixture meets all of the criteria of a box but lacks a cable clamp don t use it without a box.
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.
The electrical box or junction box is a code requirement that was established to prevent fires and other electrical accidents.
Metal boxes are usually made of aluminum steel or cast iron.
Choose from many junction box sizes to find the one that best suits your project.
It ll stick out slightly but it beats sparky splices lighting your studs up.
Surface mounted boxes are your friend here.