although you can have fun and even grow some nice plants using cfl's...you will never achieve the same results as a 400w HID.

don't kid yourself...If you are not limited by grow room size or heat, due to poor circulation...Then you need to use HID's.

I have used cfl's and they do nicely for veg, but do not match any of my HID's; From 250w-1000w. lw
latewood Reviewed by latewood on . Light distance for seedlings I have some seedlings just up, and have them under a 400w MH 36" above them. I'm concerned about stretching, a problem I have had with unsuccessful grows in the past. Is 36" too high, too low, or just right? I know I will need to lower the light once they are vegging sufficiently. I have read various posts in searches and the distances discussed range from 2 feet to 4 feet, so I am not sure what to do. Rating: 5