Max,
One of the things that puzzle me about Canada is that parking lights
are never used. Legally you have no need to leave your parking
lights on !! To me that is nuts !
At 05:21 PM 10/2/2006, Max Heim wrote:
>Maybe they'll work in the front parking lamps?
>
>
>--
>
>Max Heim
>'66 MGB GHN3L76149
>If you're near Mountain View, CA,
>it's the primer red one with chrome wires
>
>
>on 10/2/06 1:14 PM, Barrie Robinson at barrie@look.ca wrote:
>
> > Theo,
> >
> > Damn! Now I know. - Does anyone want my white LEDs ???
> >
> >
> >
> > At 02:37 PM 10/2/2006, Theo Smit wrote:
> >> Part of the problem with using white LEDs behind a red lens is that modern
> >> white LEDs are actually blue, violet or ultraviolet LEDs with a
> fluorescent
> >> slug over top of them. The short-wavelength light from the LED excites the
> >> fluorescent material, which then radiates in the visible part of the
> >> spectrum, producing 'white' light with a bit of a blue cast to it. Putting
> >> that behind a red lens then throws away about 90% of the effective
> >> radiation, because the blue light and everything except for the red and
> >> nearly-red components will get absorbed by the lens.
> >>
> >> Pure red LEDs generate red light only, and all of it will pass through the
> >> taillight lens, with no wasted energy. Red LEDs will be MUCH better than
> >> white LEDs, and they are definitely brighter than the equivalent
> >> incandescent bulb especially if you're directly behind them.
> >>
> >> Best regards,
> >> Theo
> >
> > Regards
> > Barrie
> >
> > Barrie Robinson
> > (705) 721-9060
>
>Your messages not reaching the list?
Regards
Barrie
Barrie Robinson
(705) 721-9060
|