The Planted Tank Forum - View Single Post - New Lighting for a 150 gallon- 6 ft open top tank.-UPDATED! GROWTH PICS!
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Old 11-25-2012, 04:36 PM   #7
Steve001
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Quote:
Originally Posted by Hoppy View Post



I'm not yet convinced that we need to be concerned about CRI for planted tank lights. If you don't consider that, the light can be a lot simpler, and less prone to having colored shadows in the tank.
Configuring these leds into a pendent style might take care of the expected colored shadows if they in fact do occur, but which hasn't been shown to occur conclusively. For example in this vid http://www.youtube.com/watch?v=4cRHcaPcY8w starting at 5:53 the Acan rep is demonstrating their Prism light. You'll notice no colored shadows. Further into the vid the interviewer at 8:00 minutes mentions he see's no individual colors of light.

6500K leds have a good spectral distribution as is, but they have a blue gap. Adding cyan leds would fill in the gap and hopefully creating a high CRI at the same time.

Last edited by Steve001; 11-26-2012 at 10:04 PM.. Reason: x
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