Despite what people have to say about their experiences with the Current USA light on their nano tanks and it being "crap", I'll disagree. The bulbs are cheap (under $15 each) to replace, but they aren't the best. But they're decent, and they get the job done.
I suspect people who didn't have success with that particular light have other issues besides lighting. I have this light and my corals look pretty good:
Overall, I'm satisfied with the unit and it's overall performance. I'd say go for it. You could always use it as frag tank lighting when you upgrade
