Kevin, you would not need LED lights if you were growing outside, and I would make a bold guess that most of the LED people here will be growing indoors. I think I mentioned above that I can not endorse any of the commercial systems out there today, because of exactly what you repeated here, they are too costly and not perfected yet. I would also like to comment to you regarding the fan. While it is true that LED lights put out less heat than many of the other systems, they do generate heat, and especially in the summer time this needs to be dealt with. You are also forgetting that there are other reasons to have a fan in your grow room, such as to exercise the plants and make them stronger, provide a flow of fresh air that the plants need to thrive, and to keep down moisture that could produce molds and mildews. I would never recommend running a grow room without a fan, no matter what lights are used.