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Old 04-01-2011, 09:23 PM
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Dez Dez is offline
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The reviews of this light fixture says that the light is really focused, so you won't get much spread. Unless you suspend it 2 feet above the water. This results in a really spotty effect if you only have 2 lights over a 48" tank. Not a lot of people will want to mount it 24" above their tank. This is cause the reflector for each led uses a 60 degree lens, making it
Really focused, resulting in the high par values.
  #2  
Old 04-01-2011, 09:35 PM
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what about swapping the reflectors out for 120's instead of 60 or go to a 70
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  #3  
Old 04-01-2011, 10:02 PM
Jeff000 Jeff000 is offline
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What is the cost on these?


Quote:
Originally Posted by Dez View Post
The reviews of this light fixture says that the light is really focused, so you won't get much spread. Unless you suspend it 2 feet above the water. This results in a really spotty effect if you only have 2 lights over a 48" tank. Not a lot of people will want to mount it 24" above their tank. This is cause the reflector for each led uses a 60 degree lens, making it
Really focused, resulting in the high par values.
The little sub note on the image in the first post says based off replacing a 250w mh with 4 of the Ecoray 60's

So 4 60's = 250w mh.
And their power savings are based off $0.25/kWh, A little more then 2.5 times what the rate in Edmonton is.


I bet replacing with 120 degree lens would not give you anywhere near the par values, they are only 1w LED's. Not to mention finding a 120 degree lens for that led might be very hard or impossible.
  #4  
Old 04-02-2011, 12:38 AM
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Quote:
Originally Posted by Dez View Post
The reviews of this light fixture says that the light is really focused, so you won't get much spread. Unless you suspend it 2 feet above the water. This results in a really spotty effect if you only have 2 lights over a 48" tank. Not a lot of people will want to mount it 24" above their tank. This is cause the reflector for each led uses a 60 degree lens, making it
Really focused, resulting in the high par values.
Initially these lights were designed for placement up to 4' above water for commercial use.

We are actually talking to the manufacturer in changing the collimator angles for a more home user effect, the pars will be slightly reduced, but you will get better coverage. As we will be the authorize warranty depot for the Led's in Canada, we will be able to help modify them better for non-commercial use.

Then again, for a suggested retail of $349.99 for the 60d, it's nothing to sneeze at.

Ken - BWA
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Old 04-02-2011, 01:47 AM
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From experience with my led array.

i think for the the price this is a decent lighting module.
As for the lens at 60 degree is a bit narrow will have to be at least 18" high from the surface,if you remove the lens or replace it with a wider angle you will loose quite a bit of PAR.
At 1W each totals 112w What is the amperage drive max or what are they driven at as most companies drive the Led at only 70% of the full capability.
 


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