current is good for low light
just look up (or try to look up) the PAR values for whatever fixture you're thinking of, and then compare that to the desired lighting level you want to achieve.
google how to light a planted tank with PAR for a better explanation than I can recall offhand on how much PAR translates into roughly what lighting level.[/]
Thank you, I will

Sounds like this is the most important thing to consider, especially for my plants sake. I really like the multiple settings the Current offers, but it looks like them bells n whistles (I saw a pretty cool device that ramps the light up and down to create dusk and dawn lighting I like) aren't cheap.