For wall or ceiling mounting - vertical or horizontal. Ideal for stairwells, corridors, lavatories or any utility application. Certain airborne contaminants can diminish integrity of acrylic. Construction: Easy maintenance design for individual or tandem mounting. For row mounting, order RMT option. Heavy-duty code grade steel. Metal parts are die-formed. Finish: Five-stage iron-phosphate pretreatment ensures superior paint adhesion and rust resistance. Standard finish is high-gloss, high reflectivety, baked white polyester (architectural black available). Optics: Available with high performance A12 pattern clear acrylic or low brightness matte white opal acrylic. Front metal fascia eliminates direct illumination. Provides up/down distribution. Electrical: AWM, TFN or THHN wire used throughout, rated for required temperatures. UL/CSA Listed ballast disconnect with strain relief and leads provided standard. Installation: End caps spring-loaded for easy diffuser removal. Listings: UL Listed to US and Canadian safety standards.