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UNDERSTANDING KELVIN, LUX, LUMENS, PAR, AND PUR KELVIN The descriptor Kelvin is often used as a measure of color temperature of light sources. Color temperature is based upon the principle that a black body radiator emits light the color generated at the temperature of the radiator. Black bodies with temperatures below about 4000 K appear […]

Ingredients for Good Coral Growth and Color Light, Coral, and Photosynthesis Many factors can affect coral growth; lighting, water temperature, feeding strategies, and water chemistry all have an affect coral growth and their appearance.  Proper lighting is one of the most important ingredients for successfully growing corals in a reef aquarium. The Zooxanthellae that live […]

Orphek LED revolution for Reef aquarium This is Part three in a series of articles and in this article we will focus on the LEDs we use, particularly our new revolutionary18K white LED.   First we will explain what LEDs are and how they work.  A LED is not a miniature light bulb, it is […]

Orphek LED revolution DIF 100 This is Part two in a series of articles and this article will focus on the development of the DIF 100 series and further improvements that were made in chronological order. March 29 2011 – DIF 100 Orphek engineers wanted to design and build a pendant that would allow hobbyists […]

Orphek LED revolution PR156 This is Part one in a series of articles and this article will focus on the development of the PR156 series and further improvements that were made in chronological order 2009 In 2009, Orphek designed and built the first LED fixture capable of growing all types of corals without regard to […]

Some experimental frags under LED lighting Tank is 200cm x 120cm x 27cm (water height). The LED unit is 45cm above water level. 2x Orphek  PR156  LENS OUT I’ve been debating trying out an LED set-up to see what colors I can get….here are some pics two weeks into using my new LED units strung […]

ORPHEK DIF 50 XP LED PENDANT Reviewed by James Gasta (wetwebmedia)   Pendant LED lighting has become increasingly popular in the last two years. The Orphek DIF 50 XP Pendant provides a means to effectively illuminate both shallow and deep tanks (depending on the lens used) with enough PAR/PUR to support corals and other photosynthetic […]

The Four Masters Video Series Coral Tank from Canada (1350gal Display Tank) , peters fish tank “Update as promised Its been a long while since any updates. We have been very busy with the build and have lots to talk about. We have been shooting videos for the last six weeks and have put together […]

About Corals About Light,Coral,and Photosynthesis Many factors can affect coral growth Lightning, water temperature, feeding strategies, and water chemistry all affect coral growth and appearance.  Proper lighting is one of the most important aspects of any reef aquarium. The Zooxanthellae that live in coral tissues depends heavily on specific types of light energy to flourish […]

Coral frag tank light by Orphek LED lighting  

Orphek Drops a Pendant LED Bomb DIF 100/50 XP January 29th, 2012 Michael Rice (Dr. Feel Good) http://marine-engineers.org/2012/01/29/orphek-drops-a-pendant-led-bomb-dif-10050-xp/ Pendants seem to be the future of LED technology with their tight, halide simulating arrays and ability to pound power deep, but there is yet to be a multi spectrum pendant on the market. That is until […]

Orphek Nilus Orphek Nilus’s channel 1.  Setting the time Video #1 in the series of programming your new Orpehk Nilus unit. This unit is designed for coral reef tanks containing SPS, LPS, soft corals, clams and anemones. They also provide perfect lighting for FOWLR systems and predator tanks.       2. Setting the daylight […]

Orphek review by:clients “Pictures tell a thousand words.” http://reefcentral.com/forums/showthread.php?t=2096730&page=5   Video Links: “amazing reef” “We are extremely happy with theses lights. They are a showboat for shimmer and growth.” “Link” Nice tank   Ying and Yang” shaped tanks at a Children’s Hospital in upstate NY. Orphek DONATED all of the DIF-30 units we used to […]

Orphek PR-156 LED Units – The Salty Box Reviews By: Ged  18-05-2011 http://www.thesaltybox.com/forum/equipment-reviews/93389-orphek-pr-156-led-units-salty-box-reviews.html Lee and Craig from Marine Aquatics, have very kindly arranged for me to loan an Orphek PR-156 LED Unit (in white) for a couple of months, so as to give the forum some good old honest feedback, as well as performance details etc I have been […]

Testimonial “Pictures tell a thousand words.” http://reefcentral.com/forums/showthread.php?t=2096730&page=5   Video Links: “amazing reef” “We are extremely happy with theses lights. They are a showboat for shimmer and growth.” “Link” Nice tank   Ying and Yang” shaped tanks at a Children’s Hospital in upstate NY. Orphek DONATED all of the DIF-30 units we used to light them! […]

Orphek Review PR 156 by: marine-engineers January 19, 2012 Awhile back I reviewed a PR-156 LED light from Orphek, and recent testing by Sanjay Joshi revealed these lights to be a very focused deep water PAR monster, but what happens when you want some more spread? This question has led me to try removing all the lenses to see what it can […]

Orphek PR156XP Reviewed By marine engineers November 22, 2011   Awhile ago I mentioned that I was purchasing a PR156 for review, and after having the fixture for a while now, I feel I’m finally ready to give you the details. This fixture, and this whole company for that matter, get some interesting press, so I […]

nano reef blog Review Orphek PR156 LED lighting  (15th December 2010) http://www.nanoreefblog.com/reviews/orphek-pr156w-led-lighting-unit-reviewed Orphek PR-156W LED lighting unit reviewed I’ve been wanting to try out some LED lighting now for awhile – LEDs are every where in this hobby. They’re suited to nanoreef applications where hobbyists need more light for light demanding corals but don’t want […]