Based on what little I know Rose, it really looks like the "good" footprint is gonna be closer to 3x3 maybe 4x4 with some fall off at the edges....penetration is gonna be the key factor and how deep they punch into the canopy. I wouldn't run them closer than 24" to start and see what you get the first run. You said you have been watching them and your very smart, if it looks like you could get the results your after and it's cost effective I would say give it a go. I am nowhere near as educated as other peeps we know, he just has such a history dealing with suppliers, and the industry as a whole. Even starting his own line of lights that performed very well. I'll be interested to see how well they perform for you. Me I would personally shoot him a pm and ask his opinion....he would have real answers and that might save you money based on what he knows or if he doesn't know about them then is always honest. I just have a good relationship with him and trust his advice. Either way I see keef getting good results with the mars 300, so imho you don't have to spend mega bucks to run LED, you just need to tailor your expectations to the lights actual ability. I always like to see new tech so hopefully you will get a product that performs to your expectations.
