QUOTE(Naxul @ Mar 25 2008, 04:04 PM)

but if you only have one grow space and want a perpetual harvest theyre the best way to go.
Naxul you make very good sense there, half way through the grow you could start the next grow using the same light?
That way you would get enough over the two grows not to have to grow for a while. Course you'd need enough seeds and they are pricey to begin with, but great point.