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.
the term lumen is a measurement of light output which consumers have a need to become more and more aware of back in the day we went to the store and bought light bulbs we had become used to what a 60 watt or 100 watt light bulb looked like and how much light they provided