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03-02-2006, 01:18 AM#1
OPJunior Member
height lumen measurements are taken from for bulb specs
my 600 watt light is rated at 95000 lumens. Does anyone know what height that rating is for? I know the lumens decrease rapidly as the light is raised, but what height is the base lumen number taken from?
htl Reviewed by htl on . height lumen measurements are taken from for bulb specs my 600 watt light is rated at 95000 lumens. Does anyone know what height that rating is for? I know the lumens decrease rapidly as the light is raised, but what height is the base lumen number taken from? Rating: 5
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03-02-2006, 02:58 AM#2
Senior Member
height lumen measurements are taken from for bulb specs
The measurment for lumens is taken at 1 FT without a reflector.
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03-02-2006, 06:01 AM#3
OPJunior Member
height lumen measurements are taken from for bulb specs
ok, cool. So if it's at 18" or 24"(typical height for 600w?) does anyone know what the lumens are. I know there is a formula, but I can't remember it and if someone has done the calculations already that would be sweet!
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03-02-2006, 06:28 AM#4
Senior Member
height lumen measurements are taken from for bulb specs
How about this?
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