FWIW...Ken at Blue World in Edmonton is building me an LED fixture with built in dimmer switch, and once it's integrated with my profilux, will be able to auto dim via the controller. It might be worth your time to get intouch with him and quiz him up...you WILL save BIG over the other fixtures out there, and they look really good. He's had one of his LED light's set up on a tank for a couple of months now, and it, and the coral look good.
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