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NASA SAYS:
Full
NASA Article, Click Here
"LEDs enable
researchers to eliminate other wavelengths found within normal white light, thus
reducing the amount of energy required to power the plant growth lamps."
"We've found
basically is that we are able to limit the amount of color we give to the
plants and still have them grow as well as with white light!"
"Being
plant physiologists, we know the chlorophyll molecule well enough that we
know which wavelengths most efficiently stimulate plant growth, and it
turns out to be blue and red. So I don't have to devote energy to green
light, and my plant will grow just as well."
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