Fixture mounted above the ceiling. With downlights, only the Aperture and Trim visible from below. With fluorescent troffers and luminous ceilings, only the covering is visible. Recessed fixtures provide direct downlighting.

Percentage of light reflected from a surface.

Percentage of light reflected from a surface.

Glare from the Specular Reflection of bright light sources. You often experience reflected glare when looking at a computer screen, when reading a glossy magazine, or when working on a polished counter surface.

Glare from the Specular Reflection of bright light sources. You often experience reflected glare when looking at a computer screen, when reading a glossy magazine, or when working on a polished counter surface.

Light bouncing off of a surface, not absorbed or transmitted. See also Specular Reflection

Light bouncing off of a surface, not absorbed or transmitted. See also Specular Reflection

Part of a fixture that redirects light to control brightness, beam spread, or intensity. Reflectors are frequently Specular, but may also be glossy, diffuse, or matte.

Part of a fixture that redirects light to control brightness, beam spread, or intensity. Reflectors are frequently Specular, but may also be glossy, diffuse, or matte.

Finishing Section or Trim for a recessed downlight, which uses a reflector.