Architectural quality construction, Direct-indirect fluorescent lighting, Cross blade parabolic louver, Accepts Slide-N-Lock™ optics with 8 field adjustable settings, Isolates uplight & downlight with lamp isolators & dual-circuit wiring, Accepts integral daylight sensor or daylight/occupancy sensor, Standard flat or optional die-cast end cap available, Individual or continuous mounting, Certified to UL/cUL standards