I certainly understand.

Check out this white about 1/3 down the page, CCS100A. It has a spike in blue and red, almost exactly where peak chlorophyll activity is. Looks like 465 ad 645. I'd like to see someone explain why this white is not good for growing plants. If I could only choose one LED to grow with, this might be it. http://www.bocaflasher.com/pdf/photo...2006-05-22.pdf