24/0 is fine, like i told you before, which is better is a wildly debated topic, i prefer 24/0 for vegging w/cfls. that way they dont stretch so much on internode lengths. dont say your using 8 100w cfls, your not, your running 8 23w or 8 26w bulbs(i forgot which one you said it is.). thats what you go by, not the incandesent equivelent watts.