the way i look at it. the real person issues with cfls are. fire is my main concern. now in theory, if i have 10 lights plugged in, at 10 watts, or 1 at 100 watts, i think the higher number of plugs, cables, and just plain statistics should say its more dangerous, so instead of 1 risk, you have 10 risks. 10 cables to worry about plugging, splicing, moving, touching things and burning, falling breaking. and then theres the more technical theory of lights loose energy. the loss of energy i think would be higher due to the 10 different circuits. i mean that could be nothing, maybe theory, but this is 2 reasons on top of the other 100 to get hps.