The author of that piece has been involved in professional aquarium maintenance since 1987 in Southern California.
The web page mission statement: I will address these subjects in upcoming posts based on my experience, those in the industry that I know have true knowledge of said products, and based factual research of said products.
Maybe this article will clear it up....from the article above
If you are still considering one of these LED
knock-offs (that use “off the shelf emitters&rdquo
, realize the most important light measurement is “Useful Light Energy” or PUR and although most lighting professionals recommend the use of PAR Meters as a measurement of any aquarium lighting fixture, in the end this is still not 100% accurate, especially when one compares the best emitter bins to many of the older emitter bins used by the cheaper Chinese or similar LED
light fixtures. Often the “cheap” LEDs produce considerably more useless green/yellow light and are bottom heavy in the Blue Spectrum. It is also noteworthy that a couple of these low price LED
makers from China are also using stolen technology emitters and pending lawsuits will likely result in these manufacturers not being around long term for any real customer support.
The purpose of this Aquarium Supplies & Resources is to provide Resources for top notch/researched Aquarium Information.