It looks like I'm going with the M80. Next question, what bulb would you choose with no actinics, just a single pendent, for a mixed reef/mostly SPS tank? Looking for ideas on the best color really. I'll check out Sanjay's site to see if he's tested the bulbs I get interested in.

One thing for anyone who has not looked at those tests, it's amazing how much PPFD (measure of light intensity, liike PAR only supposedly more accurate) you lose going to higher temp bulbs. Like from around 100 for some DE10ks to under 40 for some 20ks.

One last question; what kind of ballast is in the geisemann nova pendents, and to anyone that's got one, is it worth the extra cost for that set up?