Dennis McCarthy
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  • Schaumburg, IL
  • United States
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The answer to the question - Where's the LED zealot now that we could use his input?
5 Replies

The answer is  I don't concern myself with inorganic LEDs anymore-I pretty much just focus on OLEDs nowadays- really after watchingthe development of a range of LED lamps - I'm transitioning tothe…Continue

Started this discussion. Last reply by Dennis Heidner Aug 8, 2013.

I never had anything good to say about crappy LED Retrofits....
1 Reply

Here is why-- I can speak about 3 instances where manufacturers of LED retrofitshave had  faulty stuff recalled - the latest Lighting Science groups  offerings- the Ecosmart LEDcheapies sold at Home…Continue

Started this discussion. Last reply by Dennis Heidner Mar 24, 2013.

LEDs Magazine's comparision of some A-19 LED choices
19 Replies

There are occasions to point out a good cache of knowledge - or information - this relates to the task of buying LED lights for your home or office -This is the right time for a multiple product…Continue

Started this discussion. Last reply by Eric Wu Feb 5.

Would you like a lighting audit with your energy audit ?
8 Replies

Do energy audits that neglect doing the "subset" of a lighting audit underserve the client ?  If your auto mechanic excluded evaluations of 20% -30% of your car would you be happywith the scope of…Continue

Started this discussion. Last reply by Curt Kinder Feb 2, 2013.

 

Dennis McCarthy's Page

Latest Activity

Dennis Heidner replied to Dennis McCarthy's discussion Solid state lighting - saves lives- and it improves life .
"Dennis McCarthy,  not sure if you've seen this... "Cree Sheds Light on Development of a 200-Lumen-per-Watt Luminaire Prototype The lighting manufacturer surpasses a Department of Energy benchmark set for 2020. By Hallie…"
Feb 16
Dennis Heidner replied to Dennis McCarthy's discussion Solid state lighting - saves lives- and it improves life .
"It is okay as long as you remember  both green and red are the colors that can not be seen by those with color blindness.  And that visual defect occurs more commonly in men.   Do you know if they are adding the color for the front…"
Feb 13
Eric Wu replied to Dennis McCarthy's discussion Solid state lighting - saves lives- and it improves life .
"LED lights are the future for automotive also there are tons of aftermarket LED accessories available for cars like interior LED bulbs for car map lights, dome lights and more, LED tail lights, fog lights, even LED headlamps."
Feb 12
Dennis Heidner replied to Dennis McCarthy's discussion The growing need for lighting auditors
"Probably closer to $70... I've been buying at about $35/tube in singles... The life of LED tubes are about twice as long.   Half the lumens... Instant start,  no hum, no flicker. Tubes are still on the watch list.  Prices have…"
Feb 10
Bob Blanchette replied to Dennis McCarthy's discussion The growing need for lighting auditors
"I'm personally done buying CFL's. The Price of LED has finally fallen enough that the features/benefits are worth the cost. I'm OK with never realizing a return on my investment when compared to CFL. For high lumen applications…"
Feb 9
Dennis Heidner replied to Dennis McCarthy's discussion The growing need for lighting auditors
"Sorry,  I couldn't resist ... (PIX below) the bulbs below were collected in my house over a several year period.  As the bulbs failed,  or took long enough to warm up that it no longer -- was safe.  You could walk in and out…"
Feb 9
Bob Blanchette replied to Dennis McCarthy's discussion The growing need for lighting auditors
"Fixtures are an entirely different comparison. Love the LED fixtures, they can be optimized to the LED's native directional output. LED fixtures ARE the way of the future, I've even started seeing them in ceiling fans... The fixtures…"
Feb 9
Ben Stallings replied to Dennis McCarthy's discussion The growing need for lighting auditors
"Bob, I assume you're talking about LED replacements for incandescent bulbs, which makes sense to compare apples to apples, but I've seen some very dramatic energy reductions for fixtures that are designed for LEDs.  A reading lamp…"
Feb 9
Bob Blanchette replied to Dennis McCarthy's discussion The growing need for lighting auditors
"LED 1/2 the energy use of CFL? I haven't seen that much difference in the LED's available in local stores. TheLEDs in stores are only using 1-2W less than CFL. No sale based on energy savings, I have NEVER seen an LED manufacturer compare…"
Feb 9
Dennis Heidner replied to Dennis McCarthy's discussion The growing need for lighting auditors
"There may be less of a job opportunity in light auditing than suggested.  Interior designers are also competing in the field, as well as architectural lighting professionals - licensed architects.  Many architectural firms have been doing…"
Feb 9
Brad Cook replied to Dennis McCarthy's discussion The growing need for lighting auditors
"Dennis, you make some very good suggestions. My philosophy is that we should be looking at everything related to energy when we do an audit and that includes lighting. Getting training followed by certification may be daunting, but auditors should…"
Feb 7
Eric Wu replied to Dennis McCarthy's discussion The growing need for lighting auditors..
"I think the price will soon drop to the level that all regular bulbs are getting replaced by LED. Think about when the fist filament light bulb came out, it is about 400 times more expensive than oil lamp"
Feb 5
Eric Wu replied to Dennis McCarthy's discussion LED use in the summer
"LED lights are better, especially for Summer time because it is cooler than traditional bulbs"
Feb 5
Eric Wu replied to Dennis McCarthy's discussion LEDs Magazine's comparision of some A-19 LED choices
"LED lights make the car look nicer and cleaner than traditional filament bulbs. Especially the LED headlight, has stronger output, less glare and last longer"
Feb 5
Dennis Heidner replied to Dennis McCarthy's discussion The answer to the question - Where's the LED zealot now that we could use his input ?
"I understand the differences in the technologies -- it (VU1) also wasn't a CRT in the same sense,  no hot filament as electron source.  If you remember the electroflourescent displays used simple point electron emissions for the…"
Aug 8, 2013
Dennis McCarthy replied to Dennis McCarthy's discussion The answer to the question - Where's the LED zealot now that we could use his input ?
"Dennis - on that contention that the woefully bad Vu 1 is anything like OLEDs is completely wrong - it was an abomination. Not any where near as good as current flat tech lighting - OLEDs and a misbegoten CRT tube pretending to be a light have no…"
Aug 8, 2013

Profile Information

Company
Northern Energy Solutions
Professional Certification
Energy Auditor
Professional Interests
I am a Solid State Lighting specialist, and
energy auditor.

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At 9:01pm on February 19, 2011, David Eggleton said…
Hi Dennis.  With your interest in electricity use reduction contests, you might appreciate (or more) The 1000 Home Challenge, which is about reducing all building energy use by a household.  Join the group on this site!
 
 
 

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