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Old 08-16-2013, 09:05 PM   #1261
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I believe PUR is more important than PAR. What good is a ton of PAR if its not useful?
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Old 08-16-2013, 09:37 PM   #1262
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The reason we generalize by using PAR is that PUR for one organism can be different than the PUR for a different organism depending on the specific frequencies its algae will absorb.
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Old 08-16-2013, 10:03 PM   #1263
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Quote:
Originally Posted by Gregcoyote
The reason we generalize by using PAR is that PUR for one organism can be different than the PUR for a different organism depending on the specific frequencies its algae will absorb.
A spec sheet for each led fixture with pur values fpr wavelengths would be amazing
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Old 08-16-2013, 10:39 PM   #1264
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Quote:
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A spec sheet for each led fixture with pur values fpr wavelengths would be amazing
The PUR applies only to a group of corals that share the same preference of frequency bandwith. While PAR is the full spectrum available.
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Old 08-16-2013, 11:42 PM   #1265
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I feel as though PUR would simply be a measurement of a specific wavelength of light. It would be nice to know how much of any given wavelength a light source puts out
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Old 08-17-2013, 01:25 AM   #1266
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I feel as though PUR would simply be a measurement of a specific wavelength of light. It would be nice to know how much of any given wavelength a light source puts out
The spectrograph that is printed on the box of a light bulb can give you an idea what frequency or wavelength it emits. The manufacturer may include the PAR on their specs but the PUR is impossible since the bulb has so many applications and the intensity for each frequency would be so overwhelming.
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Old 08-18-2013, 08:18 PM   #1267
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sue me for not reading all 126 pages to check for this, but in regards to the Tao units, wouldn't it be possible to open them up and replace the drivers with ones that would allow for controller use? I mean it couldn't be that hard and the end product would be a controller-enabled tao unit.
The one I got have PWM and analog dimming, 3 pin header inside the controller |GND-PWM-5V|, you can drive it from 5v PWM or with a voltage divider from 10V analogue
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Old 08-20-2013, 05:25 PM   #1268
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Does anyone have LEDs mounted inside the canopy that can send me some pictures? I'm debating on cutting the top of the canopy and just sitting the LED's right on the canopy.
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Old 08-20-2013, 06:07 PM   #1269
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I'd be really interested in pictures of canopies too.
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Old 08-21-2013, 01:16 AM   #1270
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Here is a shot of my two mounted in the canopy, used 4 screw hooks and the supplied hanging kit.
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