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Teardown slideshow: The anatomy of the LED light bulb

5/23/2012 06:16 PM EDT
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Miss Mu
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re: Teardown slideshow: The anatomy of the LED light bulb
Miss Mu   5/24/2012 7:58:50 PM
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It is not Infineon, we tought so at first, but we decaped the part and found on ON Semi die inside. We could do the board as a follow up. Stay tuned.

vandamme0
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re: Teardown slideshow: The anatomy of the LED light bulb
vandamme0   5/24/2012 7:50:15 PM
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The controller is actually an Infineon ICE1HS01G. You made a great effort to tear apart the LED, but how about a schematic of the board?

vandamme0
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re: Teardown slideshow: The anatomy of the LED light bulb
vandamme0   5/24/2012 7:10:42 PM
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The quoted lifetimes are PREDICTED reliability based on specific temperatures, perfect construction with no flaws, and no temperature cycling. The usual bathtub curve applies: some will fail very soon (infant mortality) due to poor construction.

old account Frank Eory
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re: Teardown slideshow: The anatomy of the LED light bulb
old account Frank Eory   5/24/2012 5:21:25 PM
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If LED bulbs really last as long as is claimed, then they're actually not more expensive in time-averaged price than CCFLs. A few years ago, I replaced all my incandescents with CCFLs, all of which claim to have 10,000 hours life. At first I bought brand name expensive ones, but after replacing a few of those after just a year or so, I started buying the cheap no-brand made in China CCFLs, which are now only $2-$3 each. They seem to also only last a year or so, which is no worse than the expensive ones. The no-brand LED bulbs seem to go for about $20 for a 60W equivalent light output, and they claim 25,000 hours life. It all comes down to the claim vs. the reality.

R0ckstar
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re: Teardown slideshow: The anatomy of the LED light bulb
R0ckstar   5/24/2012 4:53:47 PM
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If electrolytic caps are present in both bulb types, then they're going to be the common weak link, In which case I suspect we will find they both end up lasting exactly the same amount of time.

Patk0317
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re: Teardown slideshow: The anatomy of the LED light bulb
Patk0317   5/24/2012 3:47:40 PM
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New construction should make good use of this technology. With LED lighting you can do color mixing where you can change the mood of the room for reading, watching a movie, listening to music etc.

IFTLE
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re: Teardown slideshow: The anatomy of the LED light bulb
IFTLE   5/24/2012 2:48:32 PM
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How about we all stop using science to drive polotical agenda. This technology is wonderful, but the promises of savings to the consumer are absolute BS. see: http://www.electroiq.com/blogs/insights_from_leading_edge/2012/04/iftle-98-lester-the-lightbulb-vs-cfl-and-led-the-saga-continues.html

RickBunn
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re: Teardown slideshow: The anatomy of the LED light bulb
RickBunn   5/24/2012 1:57:59 PM
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Good stuff. The CFLs are great because they produce more light then heat -efficiency! The LEDs will produce heat but seam to have the efficiency. I found it easy to replace all of my incandesent lights with CFLs and only wish they were US made. I will try a few of the LEDs as the CFL's fail. New formats like overhead lighting or panels may come with time. Remember tube circuits and how the tubes were replaceable and now we had solid state and we no longer expect to replace active circuits.

Miss Mu
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re: Teardown slideshow: The anatomy of the LED light bulb
Miss Mu   5/24/2012 1:15:25 PM
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LED light bulbs are now the same price as a modest bottle of wine, and they last way longer.

Miss Mu
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re: Teardown slideshow: The anatomy of the LED light bulb
Miss Mu   5/24/2012 1:13:49 PM
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LEDs are a natural for crystal chandeliers. I saw an article some time ago about one commissioned by the British royal family. They were early adopters.

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