Music video by Justin Bieber performing Never Let You Go. (C) 2010 The Island Def Jam Music Group. #VEVOCertified on November 9, 2010. http://www.youtube.com/vevocertified.
Lumens are a unit of measurement of the total brightness that comes from a light source, in this case, a projector. One may also see the term ANSI Lumens. ANSI is an acronym for the American National Standards Institute. In general, the more lumens a projector has, the brighter the image on the screen.
Understanding Projector Lumens. Brightness is measured in lumens, but there are 2 specs. When asked, 79% of projector buyers surveyed think a single lumen number means both white and color brightness. 3 It does not.Many manufacturers provide only one specification which states the white brightness (White Light Output).hen asked, 79% of projector buyers surveyed think a single lumen number means both white and color brightness. 3 It does not. Many manufacturers provide only one specification which states the white brightness (White Light Output).