Surface or stem-mounted lensed fixture for general illumination in commercial offices and indoor retail applications. Construction: Die-formed, cold-rolled steel housing finished with baked white enamel. Standard door is fully gasketed flush steel with sturdy tee hinges and opposing, rotary-action cam latches. Spring-loaded latches optional. Aluminum doors available, flush or regressed with choice of finish. For surface or stem mounting, unit or row installation. For unit mounting on stems: Minimum of two mounting stems required on 1'x4' models. Four stems required on 2'x4' models and 4'x4' models. For row mounting on stems: Use half the number of stems required for unit mounting except on last fixture in row. Example: on 2'x4' two-lamp and four-lamp fixtures, use two stems per fixture plus two per row. Electrical: Ballast disconnect provided standard where required to comply with U.S. and Canadian electrical codes. Listings: UL Listed. CUL Listed or CSA Certified to Canadian Standards. NOM Certified.