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			There certainly seems to be a lot of variability here.  
My PW screen, at 5, looks completely dark - I can't even tell the light is on. Well, I guess I can, in complete darkness, but there is no way anyone could read at that. 
In a dark room, I read at 12-14.
		 
		
	
		
		
		
		
		
		
		
		
		
		
	
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