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Follow on Google News | Orphek PAR Readings by Clients“I tested Par with the Apogee Par meter. The results were: Under the white\blue led - over 3000 Par water level (12” under fixture-out of water) 1250 Par. Top water surface - 950 Par 5” in water 820 Par I must say I’m pretty impressed.
By: orphek 
orphek PAR readings by James Gasta “First impressions My first impression of the Orphek PR-156 was that it is extremely bright; you could not look directly at the LEDs, much the same effect as looking directly at a metal halide or HQI lamp, you cannot. The quality of materials used and workmanship are second to none. The color of the corals were much more pronounced than my present 10K MH lamps, but not over exaggerated. In three days of use with the Orphek replacing one of my two, 175 watt MH lamps, my tank temperature dropped nearly 2 ½ degrees. Orphek claims that one PR-156 Module will replace up to a 400 watt metal halide lamp. I had no way to confirm this other than view PAR readings taken with an Apogee AFQ-200 PAR meter at various tank depths (Orphek data) which were impressive. Orphek chose not to include PAR measurements in this review as variance in meters, calibration, applications, water clarity, and angle of mounting could all have an effect on the readings.” Orphek PR156 Reviewed by James Gasta “The lowest coral I have is a colony of zoanthids, they’re sitting 56cm/22 inches from the water surface or 86cm/34 inches from the diode and to the front of the tank (not directly under the unit) and the PAR reading I got there was 150, I’ll try and get a clear pic for that reading when I’m back from lunch. Kindly note all measurements were taken with 2 vortech MP40s and my return pump working on full blast. Also, measurements were taken from the diodes and not from the top of the units. What I like the most is how the PAR readings don’t degrade so much as we go deeper and deeper, and at 30cm over the water surface They cover my tank perfectly, I could probably lower them down another 10 cms and still get the same coverage, but at this point I don’t think that I need the extra PAR. Apologies for the bad pics, I hope some of you find this usefull.” http://www.reefuae.com/ “We have done a PAR testing with the PR-156W (hanging 1m above water): 1-3cm (under surface) PAR value 650-750 76cm (under surface) PAR value 250 (great value) Best regards Lorenz” “I tested Par with the Apogee Par meter. The results were: Under the white\blue led - over 3000 Par water level (12” under fixture-out of water) 1250 Par. Top water surface - 950 Par 5” in water 820 Par Tank bottom (35” under the surface) - 250 Par I must say I’m pretty impressed. “ reef central My new 450 Gal “pail” “My quantum meter reads 1250 just above surface of water 900 just below surface of water 650 at 60cm down 450 – 550 at 75 cm depending on rocks & shadows Shawn” Reef central Coral Tank from Canada (1350gal Display Tank) By:orphek.com # # # Orphek brings the best solutions to optimize coral growth. Orphek is the most advanced lightning system designed specially for marine aquariums where high intensity lightning is required. End
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