Sorry, I didn't realize John was looking at the Constellation (guess it helps if I read things
). I had thought maybe the TX5 since it's in the same price category as the Tek 6 lamp.
http://www.premiumaquatics.com/Merch...de=Aquactinics
The Constellation fixtures and the Solar Flare fixtures are considerably more expensive, so it's probably not a fair comparison to look at those versus a Tek. You usually get what you pay for.. They likely wouldn't sell too many otherwise. If you can afford the upswing in cost, go for it.