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					Originally Posted by milou  Did anyone think this D120 is not bright enough?  I run both channels at 100% and still my 4 x 39watt T5 is brighter.  My tank is 3ft x 2ft x 2ft tall.  I run 1 D120 about 8 inches above the water.  The light doesn't penetrate deep enough.  Does anyone in lower mainland have any of this I can take a look or compare?  Maybe mine is defective | 
	
 
My tank is also 2 feet deep (but only 20 inches wide). I bleached corals sitting on the sand with the unit set to 60 percent. My light sits only 2-3 inches from the surface but it is also going through a glass top. I am currently running at 40 percent ( I actually have the IT2040 but it's the same lights)