I highly doubt that these will feasibly work for growing corals that require photosynthesis to survive. that being said it could be done just most likely not worth the effort. but they could light up a fish only tank well. I looked at the various kits that they have and from best I could tell is they are using LEDs that are more on par with 5mm LEDs than the high powered ones you see on the market that people use in their tanks. The reason isnt because they arent Cree and dont have optics. People only want Cree because they are the most effecient (although all the other front runners are right there as well, and on my current build i am using $2 3watt chinese LEDs) Most people use 3 watt emitters that put out 200-300 lm and space these about 2 inches out. However some DIYers and companies (cant name who as I am unsure that the products still have yet to be released) are using 1 watt emitters and just packing them in tighter. These setups still work but just have a lot more emitters. This is without even gettin into a spectral analysis which is importat as well.

The problem with these lies in the fact that the overall wattage of the average STRIP not even 1 LED is .47 watts. So while you cant determine the light output by watts and shouldnt use watts per gallon as a rule of thumb, but at the same time I would venture to guess that these wouldnt come close to being enough light per square inch to fit over a tank and get enough lighting. And if you could for the price you might as well go with the 1 watt or 3 watt LEDs.