I"m with Bearfan...I trust coralife fixtures because I've used them and could see the quality.
Lots of the cheaper fixtures, like those 40-80watt ones DrsFosterSmith.com had...were terrible. Units that wouldn't even fire up because there were defective...and obviously cheaply made.
I mean, you can barely buy 2 65watt power compact bulbs for $40...and even a cheap electronic ballast runs $20.
So yeah, I'll be really interested to hear about long-term satisfaction with these units.
Former advisor and planted tank geek...life's moved on though.