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			 Hi Steve, 
		
	
		
		
		
		
		
	
		
		
	
	
	You are certainly getting a hell of a lot of light - much more than on the article I posted above. Are you overdriving it? You are getting more light than Mike Kirda measured with 2x400w Ushio bulbs. Your readings at 6" are similar to calculated ocean values at 5 - 8 m depth near the equator, and your 24" readings are in the range of 9-15 m. Pretty decent. My 24" readings are less than the light at 20 m. The meter is a Quantum QMSS.  |