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seafd · 05/16/2011, 09:59 PM

460nm is typically what you are looking for from a t5 for photosynthesis, which would be a blue colored bulb. Purple is typically used for the colors it produces. Daylight bulbs can be good with macros also.

05/16/2011, 09:59 PM	#4
seafd Registered Member Join Date: Jul 2010 Posts: 54	460nm is typically what you are looking for from a t5 for photosynthesis, which would be a blue colored bulb. Purple is typically used for the colors it produces. Daylight bulbs can be good with macros also.