Dennis Plunkett wrote:
>

>
> Yup,
> There is nothing stopping a manufacturer from using L.E.Ds in tail lights
> etc. EXCEPT->
>
>                                     ********   COST    ********
>
> Can't do it cheeper than a globe!
>


I don't doubt that for manufacturing costs, but how do lifetime costs
compare?  Won't an LED last longer than a bulb, improving replacement
cost and don't forget the time & trouble to dig out the old bulb.  Isn't
an equivalent brightness LED more efficient, translating into fuel
savings?

But there is another interesting issue that I read about a few years
ago; I'm assuming its true... An LED comes up to full brightness faster
than an incandescent bulb, something like a couple of hundred
milliseconds faster.  Doesn't sound like much, but at 60 MPH, that's an
additional 18 feet of reaction time and stopping distance for the bozo
that's barreling down on you from behind.


Gary Crowell