Lack of UV is not really an issue for coral growth but may play a role of some sort in colouration.  The jury is still out on that but I can tell you my corals are growing well and looking good under LEDs.  I have other concerns about this fixture but that has all been discussed ad nauseum in other threads so I won't go into it here again.   
 
What are your tank dimensions? 
		
	
		
		
		
		
		
	
		
			
			
			
			
			
			
			
			
			
				
			
			
		 
		
	
	
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