piclist 2008\07\17\083747a >
Thread: : Dead LEDs
www.piclist.com/techref/displays.htm?key=leds
face picon face BY : email (remove spam text)(Olin Lathrop)



Apptech wrote:
>> A fair number of the LED traffic lights around here have
>> developed
>> blotches of dead LEDs.  Especially the white LEDs used for
>> "Walk"
>> signals, but also even RED lights.  It's sorta sad; I bet
>> someone in
>> the local DoT is unhappy that the believed the "saves
>> replacement
>> costs" spiel..
>
> Where's the warranty document ... .
>
> Quite apart from actual LED longevity, poor driving can lead
> to early failures.

That would be rather extreme poor driving.  He wasn't saying cars were
crashing into the light poles, just that the LEDs were failing in the light
fixtures.


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Subject (change) : Dead LEDs

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