Re: Anyone moved to LED Lighting?

["Josepi" <JRM@xxxxxxxxxxxx>]

The traffic light people cannot afford failures. The legal implications are
too great. I am not sure if it is based on manufactures warraties,
recommendations or history but we still ocasional segments missing.

With LED experience this may also be a heat problem with retrofitting old
units and heat not being drawn away?? When you push LEDs too hard they don't
last long. This is only from a small sample area with slightly over $500K
population.



"Don Klipstein" <don@xxxxxxxxxxxxxx> wrote in message
news:slrnhglqb4.6b4.don@xxxxxxxxxxxxxxxxx
>  I have plenty of experience where I have been able to track individual
> units due to fading and/or a few LEDs being burned out and/or LEDs of a
> particular spectral characteristic are obsolete for the purpose due to
> lower efficiency than more modern ones.  I can tell you that LED traffic
> signal units have a very high rate of lasting a lot more than 2 years -
> more like 5-10.
>
> - Don Klipstein (don@xxxxxxxxx)

> In article <VCBOm.52114$de6.17133@xxxxxxxxxxxx>, Josepi wrote in part:
>
>>BTW: LEDs in traffic control lights are typically replaced every two
>>years.
>>The individual units continually burn out with the severe heat and current
>>demand on them.