High performance parabolic luminaires for use in open area applications and electronic offices where optical control, visual comfort and light cut-off are important. Design optimized for use with T8 lamps and low-profile electronic ballasts. Choice of diffuse or specular louvers utilizing the latest developments in louver finishing for minimized louver iridescence. Construction: Black reveal provides floating louver appearance, conceals optional air-supply slots. Square corner end plates improve strength and durability. Integral T-bar safety clips hold fixture to T-bar securely; no fasteners required. Heavy-gauge hinges die-formed for maximum strength; spring action latches concealed in black reveal. Housing formed from cold-rolled steel. Louver formed from anodized aluminum. No asbestos used in this product. Overlapping flange and modular ceiling trims available factory installed with swing gate hangers or field convertible with optional trim and hangers. Finish: Five-stage iron-phosphate pretreatment ensures superior paint adhesion. Painted parts finished with high-gloss, baked white enamel. Electrical: Thermally protected, resetting, Class P, HPF, non-PCB, UL Listed, CSA certified ballast is standard. Electronic ballasts are sound rated A. Ballast disconnect provided standard where required to comply with US and Canadian electrical codes. Fixture conforms to UL1570 and is suitable for damp locations. AWM, TFN or THHN wire used throughout, rated for required temperatures. Listing: UL Listed (Standard), CSA Certified or NOM Certified.