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Old 02-20-2014, 05:13 PM   #21
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id be careful running a 165w LED fixture with 60 degree optics...

my 125g Sw...Round 2!http://www.aquariumadvice.com/forums...220171-33.html
ever see someone cut a 125g in half??
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Old 02-20-2014, 06:16 PM   #22
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Originally Posted by tonedogz View Post
the degrees are the focus of the light 60 would be a narrower beam then 90 or 120. 120 would be a wide beam. Wider beams would be used for shallower tanks 90 or 60 would be used for deeper tanks to concentrate the light more. I think most fixtures are of the 90 degree angle.
no no no. i understand how the optics concentrate the light and what-not. what the question for the seller was which LEDs (blue, white, red, etc) have the 90 degree optics and which ones have the 120. i never planned to get a 60degree optics but the seller's response didn't make sense to me. the listing has it at 90/120 mixed optics.

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