A Luminaire whose dimension along a line is significantly greater than its other dimensions.
Luminaire optimized for cove lighting applications (uplighting a ceiling, coffer, or other surface from an architectural cove), where small size and specific light distribution characteristics are desired. Sometimes adjustable.
Luminaire consisting of bare lamps and a housing channel or flexible strip. Also called “shop light” (fluorescent), "tivoli lights" (incandescent), "xenon strip" (halogen/xenon).
Interior downlight generally designed to integrate with suspended ceiling grids. Also called “parabolic”, “2x4”, “2x2”, etc.