I've read through all of this and although he is using LEDS the plant still looks relatively healthy, very stretched out but healthy. I'd rather let the plant talk, then read about people argueing. The different types of light WILL affect the growth, so Im just sayin if someone has the money to buy LED's then more power to them. I hope that the people who are willing to expirement with the LEDs figure out a way to use them to equal effeciency, LEDs would make stealth grows a hell of a lot easier considering the reduced heat. Keep us posted Im enjoying this grow.