http://www.engadget.com/2006/12/12/seoul-semiconductor-squeezes-240-lumens-into-brightest-led/ Engadget Comments for Seoul Semiconductor squeezes 240 lumens into "brightest" LED http://www.engadget.com/media/feedlogo.gif http://www.engadget.com en-us Copyright 2012 Weblogs, Inc. The contents of this feed are available for non-commercial use only. Blogsmith http://www.blogsmith.com/http://www.engadget.com/2006/12/12/seoul-semiconductor-squeezes-240-lumens-into-brightest-led/http://www.engadget.com/2006/12/12/seoul-semiconductor-squeezes-240-lumens-into-brightest-led/
Haha, you see what I did there, get it? BRIGHT!! Oh man, that's rich.]]>Dec 12th 2006 3:47PMhttp://www.engadget.com/2006/12/12/seoul-semiconductor-squeezes-240-lumens-into-brightest-led/http://www.engadget.com/2006/12/12/seoul-semiconductor-squeezes-240-lumens-into-brightest-led/

Ahhhha "LED" the way! "illuminating"! *nudge nudge wink wink*]]>Dec 12th 2006 4:43PMhttp://www.engadget.com/2006/12/12/seoul-semiconductor-squeezes-240-lumens-into-brightest-led/http://www.engadget.com/2006/12/12/seoul-semiconductor-squeezes-240-lumens-into-brightest-led/no really... say no more... i cant handle this comedy.. it's just too good!!
]]>Sep 21st 2007 3:50PMhttp://www.engadget.com/2006/12/12/seoul-semiconductor-squeezes-240-lumens-into-brightest-led/http://www.engadget.com/2006/12/12/seoul-semiconductor-squeezes-240-lumens-into-brightest-led/Dec 12th 2006 4:04PMhttp://www.engadget.com/2006/12/12/seoul-semiconductor-squeezes-240-lumens-into-brightest-led/http://www.engadget.com/2006/12/12/seoul-semiconductor-squeezes-240-lumens-into-brightest-led/
Maybe not so bright, but it's the same thing, they have really sweet diffusers in them.]]>Dec 12th 2006 8:09PMhttp://www.engadget.com/2006/12/12/seoul-semiconductor-squeezes-240-lumens-into-brightest-led/http://www.engadget.com/2006/12/12/seoul-semiconductor-squeezes-240-lumens-into-brightest-led/Dec 12th 2006 3:52PMhttp://www.engadget.com/2006/12/12/seoul-semiconductor-squeezes-240-lumens-into-brightest-led/http://www.engadget.com/2006/12/12/seoul-semiconductor-squeezes-240-lumens-into-brightest-led/Dec 12th 2006 5:47PMhttp://www.engadget.com/2006/12/12/seoul-semiconductor-squeezes-240-lumens-into-brightest-led/http://www.engadget.com/2006/12/12/seoul-semiconductor-squeezes-240-lumens-into-brightest-led/Efficiency: Doing things right.]]>Sep 21st 2007 1:02PMhttp://www.engadget.com/2006/12/12/seoul-semiconductor-squeezes-240-lumens-into-brightest-led/http://www.engadget.com/2006/12/12/seoul-semiconductor-squeezes-240-lumens-into-brightest-led/Dec 12th 2006 3:56PMhttp://www.engadget.com/2006/12/12/seoul-semiconductor-squeezes-240-lumens-into-brightest-led/http://www.engadget.com/2006/12/12/seoul-semiconductor-squeezes-240-lumens-into-brightest-led/Dec 12th 2006 4:08PMhttp://www.engadget.com/2006/12/12/seoul-semiconductor-squeezes-240-lumens-into-brightest-led/http://www.engadget.com/2006/12/12/seoul-semiconductor-squeezes-240-lumens-into-brightest-led/
There may be ways to simulate more of the spectrum by using many LEDs and integral controllers in a small lamp.

AFAIK, the biggest stumbling block to LEDs was widespread lamps was efficacy, and it looks like that is starting to crumble. And btw, I always thought of efficacy as the ratio of light output to energy required, hence lm/W.]]>Dec 12th 2006 5:19PMhttp://www.engadget.com/2006/12/12/seoul-semiconductor-squeezes-240-lumens-into-brightest-led/http://www.engadget.com/2006/12/12/seoul-semiconductor-squeezes-240-lumens-into-brightest-led/
This is a good step in teh right direction.


I can't wait for a 1mil hour lamp on an LCD projector with inorganic panels (new panny's). The reduced power consumption, reduced heat, smaller package and lower cost of ownership will be an unbelieveable step forward.]]>Dec 12th 2006 5:29PMhttp://www.engadget.com/2006/12/12/seoul-semiconductor-squeezes-240-lumens-into-brightest-led/http://www.engadget.com/2006/12/12/seoul-semiconductor-squeezes-240-lumens-into-brightest-led/
I know Phillips has a line of LED bulbs that screw into the standard edison plug - and they've got "white" ones which are great for outdoor lighting, or in the garage, etc... not cheap per lumen, but the power draw is less than a comparable fluorescent.
]]>Dec 12th 2006 5:30PMhttp://www.engadget.com/2006/12/12/seoul-semiconductor-squeezes-240-lumens-into-brightest-led/http://www.engadget.com/2006/12/12/seoul-semiconductor-squeezes-240-lumens-into-brightest-led/Dec 12th 2006 4:24PMhttp://www.engadget.com/2006/12/12/seoul-semiconductor-squeezes-240-lumens-into-brightest-led/http://www.engadget.com/2006/12/12/seoul-semiconductor-squeezes-240-lumens-into-brightest-led/Dec 12th 2006 4:32PMhttp://www.engadget.com/2006/12/12/seoul-semiconductor-squeezes-240-lumens-into-brightest-led/http://www.engadget.com/2006/12/12/seoul-semiconductor-squeezes-240-lumens-into-brightest-led/Dec 12th 2006 9:33PMhttp://www.engadget.com/2006/12/12/seoul-semiconductor-squeezes-240-lumens-into-brightest-led/http://www.engadget.com/2006/12/12/seoul-semiconductor-squeezes-240-lumens-into-brightest-led/Dec 12th 2006 4:45PMhttp://www.engadget.com/2006/12/12/seoul-semiconductor-squeezes-240-lumens-into-brightest-led/http://www.engadget.com/2006/12/12/seoul-semiconductor-squeezes-240-lumens-into-brightest-led/Dec 12th 2006 5:29PMhttp://www.engadget.com/2006/12/12/seoul-semiconductor-squeezes-240-lumens-into-brightest-led/http://www.engadget.com/2006/12/12/seoul-semiconductor-squeezes-240-lumens-into-brightest-led/
@Andy: The problem is that it's very hard to adapt old light fixtures to newer technologies. Where would you screw in an LED into a desk lamp? You could either create something that looks like an incandescent (A-shape lamp) or become even more efficient and create a whole new fixture. It's hard to convince people to swap out the incandescents for compact fluorescents. And (yeah right...) if everyone had solar panels, there would be no need for a transformer.

$MattF: LEDs have surpassed incandescent for years. The trouble is that the colors tend to shift at different rates and though they last for 5x a fluorescent, the light output at the end of their life is about half of what it was initially. Also getting the heat away is a huge issue (basically all other light sources like it warmer). Also, studies have been done that show that the same color rendering metrics on other sources can't be applied to LEDs (basically people tend to like what would be considered the worst).]]>Dec 12th 2006 5:57PMhttp://www.engadget.com/2006/12/12/seoul-semiconductor-squeezes-240-lumens-into-brightest-led/http://www.engadget.com/2006/12/12/seoul-semiconductor-squeezes-240-lumens-into-brightest-led/Dec 12th 2006 6:20PMhttp://www.engadget.com/2006/12/12/seoul-semiconductor-squeezes-240-lumens-into-brightest-led/http://www.engadget.com/2006/12/12/seoul-semiconductor-squeezes-240-lumens-into-brightest-led/Dec 12th 2006 9:01PMhttp://www.engadget.com/2006/12/12/seoul-semiconductor-squeezes-240-lumens-into-brightest-led/http://www.engadget.com/2006/12/12/seoul-semiconductor-squeezes-240-lumens-into-brightest-led/google for Philips T5 Silhouette Brochure, they claim up to 104 lumens/watt and "Lumen maintenance of T5 Linear lamps is 95% at 8,000 burning hours (40% of rated average life)"]]>Dec 12th 2006 11:22PMhttp://www.engadget.com/2006/12/12/seoul-semiconductor-squeezes-240-lumens-into-brightest-led/http://www.engadget.com/2006/12/12/seoul-semiconductor-squeezes-240-lumens-into-brightest-led/Dec 13th 2006 1:48AMhttp://www.engadget.com/2006/12/12/seoul-semiconductor-squeezes-240-lumens-into-brightest-led/http://www.engadget.com/2006/12/12/seoul-semiconductor-squeezes-240-lumens-into-brightest-led/

CRI wiki entry - http://en.wikipedia.org/wiki/Color_rendering_index

Sodium Vapor Lamp - http://en.wikipedia.org/wiki/Sodium_vapor_lamp]]>Dec 13th 2006 1:52AMhttp://www.engadget.com/2006/12/12/seoul-semiconductor-squeezes-240-lumens-into-brightest-led/http://www.engadget.com/2006/12/12/seoul-semiconductor-squeezes-240-lumens-into-brightest-led/
Yes, they are! Incandescent lamps are blackbody radiators with a CRI of 100, they just don't offer the same color temperature as daylight. High color temperature halogens are as good as you get for "full spectrum" artificial light (although there are specialized metal halides that come very close). Halogens ARE incandecent lamps.

http://www.fullspectrumsolutions.com/cri_explained.htm]]>Dec 13th 2006 8:12AM