In corncobs style there are no electronic parts that shake loose. Those
other LEDs using voltage converters and current regulators, bigger parts
can fatigue over time, also in cfl circuits.
I was just checking out led display at home depot. Pretty cool. Cool white,
warm white. Some of the large aluminum fins do get warm. Bright !
Have had several "decorative" LED lights give up the ghost, haven't
lasted any longer than the incandescents or CFLs that they replaced.
So you're right, they can screw up almost anything. Had a couple dead
out of the packages, too. Since all of the current lights, no matter
what type, are the products of that great Chinese QC, it's no wonder.
The LED bulb failures were total, not just a few defective individual
LEDs croaking like on a cheap flashlight. And this is with a
stationary floor lamp, not on any sort of vibrating tool. At least
the dead ones don't have any mercury.
At least the dead ones don't have any mercury.
A study by UC Irvine's Department of Population Health & Disease Prevention
has discovered that LED diodes contain unsafe levels of carcinogenic toxins.
While LED's less energy friendly cousin's, CFLs, contain a measured amount
of mercury, LEDs are laden with lead, arsenic and a handful of other
chemicals that have been linked to different cancers, neurological damage,
kidney disease, hypertension, skin rashes and other serious illnesses. Not
only are these chemicals harmful to consumers if the bulbs are mishandled or
broken, but extracting those toxins from the earth is a destructive process.
Study Finds LED Light Bulbs Contain Unsafe Levels of Carcinogenic Toxins |
Inhabitat - Green Design Will Save the World
Is there a link to the actual study anywhere? All I can find is stories
based on a press release that may or may not have any relation to the
content of the paper. The same press release goes on about the copper
content like the copper contend of LEDs is going to end the world, so it
has to be taken with a huge dose of salt.
I can't remember where, probably here. I've heard the Chinese made LED corn
cob lights have a high failure rate.
Christopher A. Young
Learn more about Jesus
It would have to be a really crappy LED design to _not_ stand up to
vibration better than an incandescent or fluorescent. No little thin
wires, nothing working at high temperature, everything well supported,
vibration resistance should be much better. However I have great
confidence in the ability of industry to screw up a simple design.
If you are comparing them to a 150 watt par38, or 150 watt R-40 flood,
which are typical style lamps for large recessed down lights, you'd be
incorrect about the light output. Of course, both these types of lamp
are no longer available in 150 watts, in an incandescent type, but when
they were, either type delivered over 2000 lumens compared to the
approximately 800 produced by the LED. Par's and R's also direct the
light downward unlike an "A" lamp.
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