hmm if it's not something you NEED for the sake of corals, if all yo uare looking for is a lower light level for morning and evening, i would go with NOFLO's instead of vho especially if you are looking for cheap
i'm running my 40w 03 actinic noflo off a simple small ballast i picked up at hd for a mere 11 bucks.
i'm also running my 40w 10k daylight noflo off another 11 dollar ballast. and htey dont give off much heat at all.
btw: i'm running those on 46.5" bulbs. 40 watts
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