Greg, If you are getting a Profilux you need the T5's I have and Dimm2 Power bar I have.  Dimmable T5's are Frickin AWESOME!! 
 
It's 2 (2x54watt) ballasts with waterproof endcaps and 4x 48" ice-cap reflectors.  It might mean building your own rail as opposed to a fixture and mounting a couple of MH reflectors, as opposed to an enclosed fixture but the result is well worth it. 
 
Let me know if you're interested and we can hammer out a price! 
		
	
		
		
		
		
		
	
		
		
	
	
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