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
Some of our culture's most enduring robots appeared in the 80s. The Aliens series produced another evil android, and we saw light robot fare in the form of Short Circuit. Two of the great robots of all time also showed up: The Terminator and RoboCop.
Two students have created a voice-command system for our homes, based on the simple and affordable Raspberry Pi.
Optomec's third America Makes project for metal 3D printing teams the LENS process company with GE Aviation, Lockheed, and other big aerospace names to develop guidelines for repairing high-value flight-critical Air Force components.
This Gadget Freak review looks at a cooler that is essentially a party on wheels with a built-in blender, Bluetooth speaker, and USB charger. We also look at a sustainable, rotating wireless smartphone charger.
Texas Instruments is rolling out a new microcontroller that could make the design of sensor networks and data logging systems simpler and less costly.
More:Blogs|News
Design News Webinar Series
7/23/2014 11:00 a.m. California / 2:00 p.m. New York
7/17/2014 11:00 a.m. California / 2:00 p.m. New York
6/25/2014 11:00 a.m. California / 2:00 p.m. New York
5/13/2014 10:00 a.m. California / 1:00 p.m. New York / 6:00 p.m. London
Quick Poll
The Continuing Education Center offers engineers an entirely new way to get the education they need to formulate next-generation solutions.
Jul 21 - 25, Design Products With Bluetooth Low Energy
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: August 12 - 14
Sponsored by igus
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