I am very happy with my Coralife Freshwater Power Compact light, it has a 6700k bulb in it, and is very very bright compared to the 30 watt that I had before.... Mine is a 36 inch 96 watt light, and cost me just a little less than $90.
Do a search on Ebay... lots of power compact aquarium lights on there.
Do a search on Ebay... lots of power compact aquarium lights on there.