U.S. CitiesCity-Data Forum Index
Go Back   City-Data Forum > General Forums > Green Living
 [Register]
Please register to participate in our discussions with 2 million other members - it's free and quick! Some forums can only be seen by registered members. After you create your account, you'll be able to customize options and access all our 15,000 new posts/day with fewer ads.
View detailed profile (Advanced) or search
site with Google Custom Search

Search Forums  (Advanced)
Reply Start New Thread
 
Old 01-20-2016, 05:54 PM
 
Location: Tennessee/Michigan
28,194 posts, read 47,529,489 times
Reputation: 19702

Advertisements

Researchers at MIT have shown that by surrounding the filament with a special crystal structure they can bounce back the energy which is usually lost.

Return of incandescent light bulbs as MIT makes them more efficient than LEDs - Telegraph
Reply With Quote Quick reply to this message

 
Old 01-20-2016, 08:06 PM
 
Location: Billings, MT
9,524 posts, read 7,788,872 times
Reputation: 13259
Good.
I can't imagine trying to use a 100 watt equivalent LED bulb (or a CF bulb) to warm my air compressor on a zero degree day so it will start.
Or using an LED bulb in the well house to keep the temp above freezing.
Or to keep baby chicks warm.
Or any of the other multitude of places where incandescent bulbs were used as a heat source!
Reply With Quote Quick reply to this message
 
Old 01-20-2016, 08:11 PM
 
Location: IN
20,789 posts, read 35,842,367 times
Reputation: 13220
Quote:
Originally Posted by Redraven View Post
Good.
I can't imagine trying to use a 100 watt equivalent LED bulb (or a CF bulb) to warm my air compressor on a zero degree day so it will start.
Or using an LED bulb in the well house to keep the temp above freezing.
Or to keep baby chicks warm.
Or any of the other multitude of places where incandescent bulbs were used as a heat source!
Those applications would require the "utility" 100 watt bulb, meaning the old design. The new incandescent design would recirculate waste heat into usable light, meaning highly energy efficient and lower wattage- yet high lumen output.
Reply With Quote Quick reply to this message
 
Old 01-20-2016, 10:02 PM
 
Location: Montgomery County, PA
14,575 posts, read 9,638,629 times
Reputation: 12113
I have lost count of how many times I had to replace my CFL lights that were supposed to last thousands and thousands of hours. BTW, the 100W light bulb was supposed to disappear but Home Depot even has 200W and may be even 300W bulbs. There is nothing thing like a 200W bulb at the workshop.
Reply With Quote Quick reply to this message
 
Old 01-21-2016, 07:33 AM
 
Location: East of Seattle since 1992, originally from SF Bay Area
29,553 posts, read 54,110,400 times
Reputation: 30779
While they cost about 4 times as much, I have gone to LED shoplights, and love them. Much brighter than the T8 Fluorescent tubes. I also have a couple of sets of Halogen lights on tripod stands for additional light or heat when I need it. I think there is clearly a need for a variety of lighting, but incandescent just don't last very long, so they are the least useful for me.
Reply With Quote Quick reply to this message
 
Old 01-21-2016, 01:18 PM
 
2,034 posts, read 2,420,948 times
Reputation: 2080
The CFLs don't last in the cold. Went through a lot of them.
Reply With Quote Quick reply to this message
 
Old 01-21-2016, 02:28 PM
 
Location: DC
6,510 posts, read 6,431,855 times
Reputation: 3112
Probably switching the CFL too often. It's better to leave them on most of the time. I get years out of two that I have on daily timers. On at dusk, off at bedtime.
Reply With Quote Quick reply to this message
 
Old 01-21-2016, 03:58 PM
 
Location: Whittier
3,007 posts, read 5,088,058 times
Reputation: 3033
LED are still the future.

They can change color, can take up a smaller footprint, last the longest and will eventually be cheaper.

CFLs were/are horrible. The light output wasn't comparable to a traditional incandescent, the color was off, and some still take a while to get to peak brightness.
Reply With Quote Quick reply to this message
 
Old 01-21-2016, 04:25 PM
 
12,591 posts, read 4,758,909 times
Reputation: 5564
Quote:
Originally Posted by John1960 View Post
Researchers at MIT have shown that by surrounding the filament with a special crystal structure they can bounce back the energy which is usually lost.

Return of incandescent light bulbs as MIT makes them more efficient than LEDs - Telegraph
That article is at best semi-coherent. There is better at MITNews.

Basically they are using a thin film filter to return the non visible light to the filament.

The initial claim is a 3X improvement in luminous efficiency with a possible growth of 4X more.

Note though there are still a very interesting set of problems. LEDs outlive incandescent by a factor of 10X and the thin film filters are not free.

So good prospects but no certainty at this point.

Note too that LEDs are not holding still...so the target may end up much more difficulty when the technologies go head to head.

Always been lots of thought in the light tech community that incandescent could do much better...but it may well need more than a fix for efficiency to overcome the growing LED capability.

Personally I can't see CFL surviving. Just not as good as good LED. But time will tell.
Reply With Quote Quick reply to this message
 
Old 01-21-2016, 06:32 PM
 
2,441 posts, read 1,928,149 times
Reputation: 4644
Still, LEDs are a long way from having the pleasant light of an incandescant or halogen. I would pay more for them than for LEDs.
Reply With Quote Quick reply to this message
Please register to post and access all features of our very popular forum. It is free and quick. Over $68,000 in prizes has already been given out to active posters on our forum. Additional giveaways are planned.

Detailed information about all U.S. cities, counties, and zip codes on our site: City-data.com.


Reply
Please update this thread with any new information or opinions. This open thread is still read by thousands of people, so we encourage all additional points of view.

Quick Reply
Message:

Over $104,000 in prizes was already given out to active posters on our forum and additional giveaways are planned!

Go Back   City-Data Forum > General Forums > Green Living
Similar Threads
Follow City-Data.com founder on our Forum or

All times are GMT -6.

2005-2019, Advameg, Inc. · Please obey Forum Rules · Terms of Use and Privacy Policy · Bug Bounty

City-Data.com - Archive 1, 2, 3, 4, 5, 6, 7, 8, 9, 10, 11, 12, 13, 14, 15, 16, 17, 18, 19, 20, 21, 22, 23, 24, 25, 26, 27, 28, 29, 30, 31, 32, 33, 34, 35 - Top