Ideal for low ceiling height applications where recessed units cannot be used. 2-5/8 inch total depth. Step-back housing for an apparent depth of 1-3/8 inch. Efficiency 76%. (T8) A shallow profile and linear prismatic sides combine to reduce ceiling contrast. Virgin acrylic lens with one-piece extruded prismatic bottom and side walls. Shielding hinges from either side (self-levelling). Full-length ballast cover snaps-in, snaps-out (no tools). Individual or continuous row installations. Suitable for mounting on low-density cellulose fiberboard surfaces using supplied spacers.