The Planted Tank Forum - View Single Post - Bulb Opinions.. GLO- LIFE GLO vs GIESEMANN MIDDAY
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post #14 of (permalink) Old 01-06-2013, 12:29 AM Thread Starter
Algae Grower
Join Date: Jan 2012
Location: usa
Posts: 86
I wonder if the spectrum is the same for Fulham's 39w bulbs i have?

It says it has 3200 lumens, and that the Midday only has 2400 or something like that.

Would that make a difference in growth speed, or would the spectrum do that mostly?
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