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Les Kacev
  • 65, Male
  • San Diego
  • United States
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Les Kacev's Friends

  • Melanie Perry
  • Alex Casteleiro
  • Richard Cadena

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Latest Activity

Les Kacev replied to Matthew Stoneback's discussion COB Explained
"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…"
Mar 3
Les Kacev left a comment for Richard Cadena
"Hi Richard: 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…"
Aug 1, 2011
Les Kacev commented on Wayne Lambert's blog post 10 THINGS LED'S CAN'T DO
"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?"
Aug 23, 2010
Les Kacev and Melanie Perry are now friends
Nov 4, 2009
Brenda Siegelman replied to Les Kacev's discussion LED Lighting - A Paradigm Shift in the group LED Lighting
"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…"
Aug 3, 2009
Les Kacev replied to Stan Romanowski's discussion LED par 38 bulbs in the group LED Lighting
"Hi: 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…"
Jul 27, 2009
Les Kacev replied to Les Kacev's discussion LED Lighting - A Paradigm Shift in the group LED Lighting
"Hi Alex: 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…"
Jul 15, 2009
Alex Casteleiro replied to Les Kacev's discussion LED Lighting - A Paradigm Shift in the group LED Lighting
"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…"
Jul 15, 2009
Alex Casteleiro replied to Les Kacev's discussion LED Lighting - A Paradigm Shift in the group LED Lighting
"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)…"
Jul 15, 2009

Profile Information

What's your current occupation?
High color rendering LED fixtures
Where did you learn your craft?
South Africa
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
Do you currently subscribe to PLSN?
No

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