Thanks for the input everyone. Good to see some more supplier options too. 
 
I might start out with my Biocube 8, but ultimately I want a fixture for a 20-24" cube setup. My current 20"x20"x24" has a 250w MH. 
 
I didn't realize dimmer would change the K, I thought it would only adjust the intensity of light.  
 
How expensive/complicated is a controller for simulated sun rise/set? 
 
Thanks again 
		
	
		
		
		
		
		
	
		
		
	
	
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