ok sweet so i grow with cfls and If i were you i would use like 4 vegg bulbs and 2 flower bulbs. durring the vegg process the mixed spectrum does wonders on the ladies. so yeah go get 2 23w 6500's and like 2 23w 2700's and you can use like 2 of the 23w 4100's you already have for 4 bulbs itll...