wow, so a 55k is better than a 65k?

i was planning on ordering from bghyrdro and i dont see any 55k so ill just use the 65. ive gotten 23w 55k cfls at home depot before, so ill just put some of those in there.

with 250+ watts over a 2x2 screen im hoping to yield around a qp off one plant. seem reasonable at least?