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Old 09-28-2014, 10:56 PM   #31
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Will do. This thing is so freaking bright at full strength. I think people are going to be amazed by the par readings this 90 dollar light gives off. Can't wait to do this

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Old 10-03-2014, 11:18 PM   #32
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Well I got the lights up and running today. They look fantastic. I took a trip to the lfs that has the meter and someone had borrowed it before I got there. They will call me when its returned

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Old 10-04-2014, 05:53 PM   #33
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Ok so I picked up the Par meter today and took a ton of readings for myself. I also put the old light back on the tank and took a few measurements of that light. The old light was a stock ehiem led light 6" off the water. The par reading on the sb was 35 in the middle of the tank. Of the tank is 20" tall. Now for the new light. I've attached pics of the fixture I'm using. All measurements are with both switches in the on position and dimmer knobs at the same percentages. Measurements are distant from light ( fl ) and center of tank
AT 25%
14" fl 150
18" fl 111
22" fl 85
26" fl 80
30" fl 75
AT 50%
14" fl 297
18" fl 260
22" fl 247
26" fl 222
30" fl 205
AT 75%
14" fl 556
18" fl 546
22" fl 462
26" fl 409
30" fl 373
AT 100%
14" fl 959
18" fl 748
22" fl 680
26" fl 637
30" fl 580

Hope this is valuable information for someone


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Old 10-04-2014, 05:57 PM   #34
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This was measured in water or air?
Those are very high readings at 100%, if accurate I would be very conservative with power settings for the next few weeks.


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Old 10-04-2014, 06:01 PM   #35
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In water. Salinity 1.25. I'm acclimating from about 20% shooting for 50%

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Old 10-04-2014, 06:05 PM   #36
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At which percentage would you say the best growth would be at. I also hope people will see these Chinese light panels are a good bang for the buck

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Old 10-04-2014, 06:14 PM   #37
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SeaLife LEDs

If your old light was producing 20 PAR, I would start out real slow. Those numbers seem high to me. My 180 watt Cree fixtures barely make that much light and they have significant wattage behind them. May be difference in PAR meters. My older 120 watt Chinese fixtures didn't produce those numbers.


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Old 10-04-2014, 10:45 PM   #38
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Maybe their so high because the light is brand new. I used a Apogee Quantum meter model # MQ-200. And the sensor was pointing directly at the light like y'all suggested. I'm running 60 degree lenses. I bet you have a 90 or 120's in your new fixtures

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