"COB or chip on board technology is just one approach to increasing the power ratings and "brightness" of LED fixtures,
Many companies in the entertainment industry are using COBs, while others have opted to go for multiple arrays of lower…"
I have an "in" with a group who are interested in developing a new movie studio in Southern California. My knowledge of LEDs does not qualify me for assisting in their lighting design. Do you have contacts in Southern CA who…"
"8 out of 10 is pretty good. Very amusing.
LED's can clean the toilet if you use UV LEDs. Well at least they can disinfect them!
LEDs with a simple circuit can count forwards and backwards. But if we offer this, what will the director do?"
"Well, I skipped the study part and just went ahead and bought MBT pars (budget) for a Haverford College install (2007) and for my rig (2008). The LED RBG mixing is a learning curve.
I set up a couple of lights and the board at home for a few days…"
It appeasr that you are looking at PAR38's with 5mm LEDs rather than High Power LEDs. These work, but do not produce a high lumen output. Further, quality is important, especially as it relates to heat management. I have seen PAR38's…"
I have seen many data tables, but have found most of them to be deficient in one way or another. The way calculations are made makes a difference. As mentioned before, color temperature is not meaningful without coordinates or a positioning…"
"I have to add to this conversation that last February in a LED convention in Santa Clara, a data table just like the one called "nutrition facts" that comes with food products was shown to us as a solution, of course, instead of Calories…"
"Hello Les and everybody,
I posted your question in another forum and this answer from seems interesting:
Reply by Zanne N on July 10, 2009 at 9:11pm
From what I've learned, calculating CRI without the right equipment (an integrating sphere)…"
Who have you worked for or where have you worked in the past?
Elkays Electronics, Inc.
What's your favorite new technology?
Art-Lite and Foto-Lite
Do you have any words of wisdom for your fellow lighting pros?
LED lighting is a paradigm shift from traditional lighting. One needs to forget all one learned in the past and focus on understanding critical issues related to solid state lighting and how they affect today's luminaires
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