Ok, I've been doing a whole lot of browsing around on the best veg lights and best bulb color temp for veg. From the looks of this chart it seems 6000k and 5500k are better color temps than 6500k. Anyone know anything on this subject? I need a good 400w mh, the one I have is 4k and causes stretching, yellowing of leaves and really slow growth. I already have a 6400k 200w cfl with reflector, but I would like more lumens with a good mh bulb in the perfect color temp to run in my cool tube. Thanks!