Nice, what brand? Does it come with bulbs?
Just an FYI if you're looking for bulbs...the KZ and ATI bulbs are really good, very efficient bulbs (good output vs watts), nice color. Some people really like AquaScience, I can't stand them as I find they lose their color in only a few months. Blues and blue plus bulbs have waaaaaay better output than actinic and if are good quality they can give you just as good color. If your fixture has two switches put blue bulbs on one switch and white bulbs on the other then set the blues for 12 hours and the whites for 8 hours. Then you can do dusk/dawn effect.
