I started with a single 2700K at seeds. Then used 4 T12 grow tubes for a week. Then added three 5000Ks after about a week. Then added four more 6500K after another week or so.

During all that I read and read about CFL growing. Seems 6500K is best to veg, 5500k is acceptable too. 5000k are sold everywhere and do ok, but are not the best.

Then 2700K for flower is the way to go.

Often I found NO K rating on the bulbs. With serious searching though, I did find the 6500Ks. So I just kept adding bulbs until it didn't stretch any more. With all I have over mine now I figure I'm as "full spectrum as CFL can get. :thumbsup:

Heres some pics of my LST grown under the above lights. These pics are a few days old and right after a re-pot. They are FAR bigger now.