The Planted Tank Forum - View Single Post - Lighting an Aquarium with PAR instead of Watts
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post #38 of (permalink) Old 07-30-2012, 07:29 PM
Algae Grower
Join Date: Aug 2011
Location: Fort Worth-TX
Posts: 65
Originally Posted by Hoppy View Post
The PAR numbers in those charts are for the actual light fixtures, with a full complement of bulbs. The exceptions are the ATI 4 bulb fixture, which had only 3 bulbs in it, and the calculated PAR shown for one bulb for Tek and Catalina lights. That last one for the Tek lights is usable by multiplying the number of bulbs by the PAR per bulb. But, Catalina uses different shaped reflectors in various light fixtures, so the number is only good for those with similar reflectors (the one bulb Catalina lights appear to use the most different reflector shape.)
This research is awesome and I think it s much more details than the previous charts. Thanks for your clarification.. and please keep us posted with your new studies.....
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