I'm going to have to dissagree. Not only are they the future of grow lights, but lights in general. They are getting brighter and cheaper all the time. I understand that at this time it would cost a great deal to have an LED setup that would do any good, but that will soon change. There are one watt LEDs that are the proper blue spectrum and red spectrum. Unfortunately they are about $10 each in quantity, within a few years those will be $0.50, and a 10 watt will be $10. At least that's what the experts from Sony and Philips in my LED class are saying.