Ok lets see if I get this footcandle story right. If I expect 2500 footcandles at 10 cm that would be something like 27000 lux. Normal daylight (min.) is something about 30000 lux according to wiki. I have no clue how much sunlight is coming through my window but lets say we are talking about roughly 3700 footcandles if I combine CFL with daylight on mid day. Am I right about this??
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