Quote:
Originally Posted by Ron99
I would say no. It says it's 180 LEDs and 21 watts so regular 5mm LEDs probably putting out very little PAR. Also, lifespan of those types of LEDs is iffy as they are very difficult to cool effectively. The tank in the video looks like it has T8s or something as well in addition to the LEDs.
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the life of the 5mm will be very good, and they don't need cooling to get that life. but like you said there is no par to speak of.. they are about the same PAR output as a NO T12 bulb from my testing about 7 years ago.
this light are good for FOWLR or FO tanks, not anything with coral.
Steve
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