The mini coralife should be fine for about anything you wanted to keep. My worrie is though that it wouldn't be long before you would not be able to find replacement bulbs. There's been a few small fixtures that the bulbs have just disappeared for.
The market is still lacking for small commercially available LED lighting but you could go with some of the stunner strips...or the EcoPico fixture. Really though, couple of dimmable buckblocks, 12 volt power supply and like 6 emitters and you could put together something that would grow anything you wanted.