Re: Interesting report on LEDs in the most recent 'Science In Action'

In article <s7adnbomybX2j_rXnZ2dnUVZ8qmdnZ2d@xxxxxx>,
R. Mark Clayton <nospamclayton@xxxxxxxxxxxxxx> wrote:
I have an LED clock purchased in 1978 with all segments still working
after 250,000 hours. White LEDs are quoted at MTBF >50k hours, whereas
the best CFL's last about 12k hours. CFL's don't like power cycling.

There's a big difference in life between 'signal LEDs' as in your clock
and ones designed to provide illumination. If you under run a tungsten
lamp you vastly increase its life too.

--
*I wonder how much deeper the ocean would be without sponges*

Dave Plowman dave@xxxxxxxxxxxxxxx London SW
To e-mail, change noise into sound.
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