I hope you've all bought LED lighting for your trees -- they are much more efficient and safer, too, because they generate less heat! We have, and so has the White House and Rockefeller Center (see below).
Here is an Electric Power Research Institute fact sheet (PDF) to answer all your questions on LED vs. conventional Christmas lights (PDF).

Happy Holidays!
This post was created for ClimateProgress.org, a project of the Center for American Progress Action Fund.
Comments
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Coolmind Posted 8:16 pm
22 Dec 2007
http://www.superbrightleds.com/
Care for Mother Earth
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spaceshaper Posted 9:57 pm
22 Dec 2007
LED's are most effectively used in highly directional applications, which CFL's are not so good at - in domestic situations this means accent and spot lighting. The MR16's listed in the above link are the first that I've seen, and they begin to look promising. Give'em another few years and we may be able to use them cost-effectively for directional lighting in home and commercial lighting as replacements not for fluorescents but for incandescent halogens. Much better deal!
There should be no battle between CFL's and LED's. In ten years time I believe we'll be using the two technologies side by side as complementary lighting sources with nary an incandescent in view. I think too that among many other applications we'll also be using LED's very successfully for street lighting, pointing straight down to illuminate the sidewalk, not polluting the night sky.
The true meaning of life is to plant trees, under whose shade you do not expect to sit.
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SMLowry Posted 4:31 am
23 Dec 2007
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trock Posted 8:28 am
23 Dec 2007
I had read that LED were being made for use in cars, because of the value of having a low use light in with a high cost energy generator. Hopefully, they will keep inproving them.
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sortashaman Posted 9:01 am
23 Dec 2007
I do like the LED seasonal lights; I just purchased two strings of white ones, and they have a warmer caste than the typically cold blue-violet "white" LEDs I've seen. I look forward to further developments of LED technology...
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LED Guy Posted 7:00 am
22 Jan 2008
Some Fast Color Change, Some Slow Color Change, there are videos on our home page.
Check 'em out!
Commercial Grade Energy Saving LED Lights
http://www.bulklights.com/
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harshcontentwriter Posted 8:28 pm
23 Sep 2008
LED Lights consumes less power, produce less heat and safe. Every Christmas, we bring LED lights from market to decorate our home that certainly enhance our Christmas celebration.
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