To mount pendant lighting fixtures such as EVA listed in lighting section (fixture canopy)
To mount EVA pendant lighting fixtures on cover which is then screwed into outlet box without twisting conductors (union hub cover)
Surface covers are supplied with GUA boxes
Fixture canopy has a threaded cover in its side to provide access for making splices or taps
Fixture with its conduit stem and canopy can be assembled and wired before installation and conductors can be spliced in canopy after it has been screwed into the body