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What type of grow light?
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March 14, 2011
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5
dice
Tomatovillian™
Join Date: Jan 2007
Location: PNW
Posts: 4,743
An old thread that discusses flourescents, has a link to a graph
of loss of light output over time with different types of lights,
and shows a picture of dcarch's multiple 400 watt metal halide
setup:
http://www.tomatoville.com/showthread.php?t=9789
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