Jeez I was just trying to make a point about lumens. The lights are $35,000 a piece.. hardly economic for the home grower.(and yes they have about 30 lumens) I dont work for NASA but the mars project and biospere are great resources of information for plant growth. because with them it is not a hobby it is a matter of life and death. Their goal is to maximize edible biomass with a minimal of energy and grow space. Same as us but we want smokable biomass.
If you really want the lights contact quantum development. I'd love to see how the plants turn out.
update: sorry get a little touchy without my coffee.
They are getting cheaper though as the company wants to comercialize them for plant growth and cancer research. info and pics
http://mix.msfc.nasa.gov/ABSTRACTS/MSFC-9709986.html