HOME  |  NEWS  |  BLOGS  |  MESSAGES  |  FEATURES  |  VIDEOS  |  WEBINARS  |  INDUSTRIES  |  FOCUS ON FUNDAMENTALS
  |  REGISTER  |  LOGIN  |  HELP
Comments
View Comments: Newest First|Oldest First|Threaded View
<<  <  Page 2/2
3drob
User Rank
Platinum
Re: Eco-friendly stuff tends to exaggerate claims
3drob   2/22/2013 9:14:42 AM
NO RATINGS
I've been trying to invest in LED lighting for almost a decade now.  The promise of higher MTBF has been (to date) marketing hyperbole.  They should last longer (in theory at least), but in reality they simply don't.  Indoor and outdoor are both the same.  Incompatibility with existing home automation equipment (most of which, such as X10, has simple Triac outputs) limits their usefulness even more (and NO, dimmable doesn't mean compatible).

The real change in the market has been their dropping cost along with their increasing lumens.  This makes the disconnect between the MTBF claims and reality a little more palatable.

cadcoke5
User Rank
Iron
Eco-friendly stuff tends to exaggerate claims
cadcoke5   2/22/2013 8:57:07 AM
NO RATINGS
There has been some histry in regards to "eco-friendly" claims, where claims didn't hold up to the test of time. 

I am specifically refering to the earlier compact fluroescent bulbs, which were suppose to last 10 years, but in reality only lasted about a year in many common usage situations.  At $10/each, the user was expected to invest a substantial amount of money in a technology that had not withstood the test of time.

LED lighting certainly is an interesting technology, but it has not proven its true longevity yet.  Government mandates are the driving force behind LED lighting, rather than successful real-world success. It has also forced manufaturing of light sources to another country. So, how much should we trust this technology?

True, there are applications where it has really proven cost effective, such as in traffic lights.  But, my advice is to allow others to test this high-dollar technology that is rapidly changing. Holding off a year or two will dramatically reduce the cost, and increase confidence in the investment.


Joe Dunfee

Elizabeth M
User Rank
Blogger
Re: Thanks for shedding light on this (pun intended :))
Elizabeth M   2/22/2013 4:46:16 AM
NO RATINGS
Yes, Chuck, it really clearly shows the difference--one of the best descriptions I've seen so far and gives a good perspective on why making the switch is more energy efficient and cost effective.

apresher
User Rank
Blogger
Floodlights in Spotlight
apresher   2/21/2013 5:23:14 PM
NO RATINGS
Excellent analysis. Even with all of the push behind LEDs, not too many decisions will be based on the facts (cost plus operating expenses) although you would expect commercial projects to take these factors into consideration.  Thanks.

NadineJ
User Rank
Platinum
Re: Thanks for shedding light on this (pun intended :))
NadineJ   2/21/2013 3:53:59 PM
NO RATINGS
I agree.  Nicely done.

It would be interesting to see a video showing Central New York Raceway Park before (with halogen) and after (with LED).  The look and feel of the lights is very different.

Pubudu
User Rank
Platinum
Re: Thanks for shedding light on this (pun intended :))
Pubudu   2/21/2013 12:46:36 PM
NO RATINGS
Dear Emily thanks for your High-light about the Spot-light,


From the every point of view such as Energy usage, Durability, Production, Etc   LED lighting is better than the halogen lighting except the PRICE.


If it can be address in a positive way transformation from halogen to LED will be very fast thanks to Oleg Losev (1927)



Charles Murray
User Rank
Blogger
Re: Thanks for shedding light on this (pun intended :))
Charles Murray   2/21/2013 11:44:33 AM
NO RATINGS
I like the comparisons between the LEDs and halogen bulbs. It really puts in perspective and makes me wonder why I haven't been using more LEDs. Great article.

sensor pro
User Rank
Gold
Re: Thanks for shedding light on this (pun intended :))
sensor pro   2/21/2013 10:58:28 AM
NO RATINGS
Obviously LSDs have huge future potenial and hey are more and more popular with general users,however the price is still abit high.  Also all hat circuitry inside has to be somehow hadled after he bulb is done.

Elizabeth M
User Rank
Blogger
Thanks for shedding light on this (pun intended :))
Elizabeth M   2/21/2013 10:42:35 AM
NO RATINGS
Thanks for this article, Emily. It's good to see the potential for LEDs on this kind of grand scale, and I like your cost-comparison breakdown. I think sometimes people just see the initial price tag and think short-term without realizing the long-term cost savings. While it's good to live in the moment, when it comes to saving energy and reducing any type of pollution, I think it's far better to think ahead a bit.

<<  <  Page 2/2


Partner Zone
Latest Analysis
Advertised as the "Most Powerful Tablet Under $100," the Kindle Fire HD 6 was too tempting for the team at iFixit to pass up. Join us to find out if inexpensive means cheap, irreparable, or just down right economical. It's teardown time!
The first photos made with a 3D-printed telescope are here and they're not as fuzzy as you might expect. A team from the University of Sheffield beat NASA to the goal. The photos of the Moon were made with a reflecting telescope that cost the research team 100 to make (about $161 US).
At Medical Design & Manufacturing Midwest, Joe Wascow told Design News how Optimal Design prototyped a machine that captures the wing-beat of a duck.
The increased adoption of wireless technology for mission-critical applications has revved up the global market for dynamic electronic general purpose (GP) test equipment. As the link between cloud networks and devices -- smartphones, tablets, and notebooks -- results in more complex devices under test, the demand for radio frequency test equipment is starting to intensify.
Much of the research on lithium-ion batteries is focused on how to make the batteries charge more quickly and last longer than they currently do, work that would significantly improve the experience of mobile device users, as well EV and hybrid car drivers. Researchers in Singapore have come up with what seems like the best solution so far -- a battery that can recharge itself in mere minutes and has a potential lifespan of 20 years.
More:Blogs|News
Design News Webinar Series
10/7/2014 8:00 a.m. California / 11:00 a.m. New York
9/25/2014 11:00 a.m. California / 2:00 p.m. New York
9/10/2014 11:00 a.m. California / 2:00 p.m. New York
7/23/2014 11:00 a.m. California / 2:00 p.m. New York
Quick Poll
The Continuing Education Center offers engineers an entirely new way to get the education they need to formulate next-generation solutions.
Oct 20 - 24, How to Design & Build an Embedded Web Server: An Embedded TCP/IP Tutorial
SEMESTERS: 1  |  2  |  3  |  4  |  5  |  6


Focus on Fundamentals consists of 45-minute on-line classes that cover a host of technologies. You learn without leaving the comfort of your desk. All classes are taught by subject-matter experts and all are archived. So if you can't attend live, attend at your convenience.
Next Class: 10/28-10/30 11:00 AM
Sponsored by Stratasys
Next Class: 10/28-10/30 2:00 PM
Sponsored by Gates Corporation
Next Class: 11/11-11/13 2:00 PM
Sponsored by Littelfuse
Learn More   |   Login   |   Archived Classes
Twitter Feed
Design News Twitter Feed
Like Us on Facebook

Sponsored Content

Technology Marketplace

Copyright © 2014 UBM Canon, A UBM company, All rights reserved. Privacy Policy | Terms of Service