What he said... You should be able to put a 26w(100w equivalent) bout 3in over their heads and be fine... Use the daylight bulbs as they are closer to the higher spectrum u get with a MH5000k-6500k, and the distance depends a little on the wattage of the CFL, but, pretty much as close as you can get without them getting too hot.
now that's what i'm talking bout.. lol Brings back memories of an unexpected visit 1 time and had to stash the babies.View attachment 2193134my sink clones