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I realize the study was done over a year ago but as far as I know the were and still are the best that led has to offer. Granted the one is out of business.

Here is another study done on some other led fixtures a couple months ago.

As for par readings I think these are pretty close to what sanjay had, granted these numbers are a little higher then his test results but that is due to the height at which the fixture is Hung. With no heat being transferred the led fixture can be much closer to the water surface thus increasing the par levels. By the way these are the fixtures I will be using.
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