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Old May 8, 2015   #10
lavanta
Tomatovillian™
 
Join Date: May 2013
Location: San Diego, CA
Posts: 68
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Here is a clear write up to read, there is plenty more on the net:
https://www.boundless.com/biology/te...ght-375-11601/

As long as you provide enough energy in the 400 to 700 nm range your plants will be happy. That spectral range is 80 to 90% transmitted through regular window glass, otherwise there wouldn't be greenhouses.

As mentioned above fluorescent lights are no match for natural light, or light through your window.
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