Thread: DIY LED lights
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  #28  
Old 01/08/2008, 08:31 AM
liveforphysics liveforphysics is offline
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BTW- The big problem with LEDs has not even been mentioned.

The spectrum of 460nm is outside the range of absorbtion for chlorophyll A. It wants to see 410-420nm and 670nm. It gets no value from 460nm, which is what all efficent blue LEDs emmit.