Looks more like a piece of the seed casing rather that burn Groff.
Seems like you've got quite the setup going there man, everything seems to be going real good :] I'll be following your diary as well, quite interested to see how these LED panels turn out. To be honest the panels look good, their technical specifications seem ideal.
Yeah those red and blue wavelengths are perfect :] 630/660 nanometres is perfect for red. I think those lights are gonna be ideal for the grow man :]