OK, so we're already looking at leds emitting @ 420,430,525,680 nm anyway.

Not all photomediated responses are gonna be wavelength determinate- We're gonna need to determine which are , and which will need to otherwise managed.

I'm also wondering about availibility/cost of leds tuned to these precise wavelengths- wondering if it makes sense to build in some slop ie leds @ 655 & 665 instead of 660nm.

Seems like color temp variations could be managed by switching-

know nothing about LEDS- are they voltage dimmable?

Still looking for more precise data.

Anybody got a Lexis/Nexis account?
rhizome Reviewed by rhizome on . Light spectrum research Due to my LED total fuckup :)) i had carried out a little research. Used various sources, and they state various date for instance Alphabetical Index of Photochem CAD Spectra different absorbtion spectra for alfa in methanol and ethil. Here is tha spectrum I have figured out for now. chlorophyll a 420 660 chlorophyll b 430 625 b carothene 450 P680 Photosystem II Rating: 5