Iwasaki's, how much actinic?
			 
			 
			
		
		
		
		I've run both types of Iwasaki's 250W bulb and the difference is amazing.  The "R" model is still a little yellow/green but the other model was an obvious yellow.  On my new set-up I'm going with 4 vho actinic bulbs and 2x250W Iwasaki.  It should provide a pleasing colour. 
		
	
		
		
		
		
		
	
		
		
	
	
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