I saw a show recently where they soldered on many led together into a board to create a very high intensity, low powered spotlight. I also know that certain led can use different light spectrums. I was wondering if anybody has use this sort of technology for growing? They could perhaps not take the place of some of the 1000w lamps but maybee could be used in a grow closet? I mean the things were strong enough to signal someone on the iss (even if it was a hundred of those units thats still impressive)