Re: Does the BF falcon have LED tail-lights??

"the_dawggie" <the_dawggie@[EMAIL PROTECTED]
> wrote in message 
news:YudQj.4823$ko5.3502@[EMAIL PROTECTED]
> Trevor Wilson wrote:
>> "Athol" <athol_SPIT_SPAM@[EMAIL PROTECTED]
> wrote in message 
>> news:1209088115.373965@[EMAIL PROTECTED]
>>> In aus.cars Trevor Wilson <trevor@[EMAIL PROTECTED]
> wrote:
>>>> "Saab C900 Viggenist" <c900@[EMAIL PROTECTED]
> wrote:
>>>>> and there are numerous ways to
>>>>> arrange the light output from an array of LED's to make them give
the 
>>>>> same
>>>>> or better distribution/spread/whatever compared to using
>>>>> grossly-inefficient
>>>>> filament lamps.
>>>> **That would depend on the incandescnt and the LED. Howeer, if you
want 
>>>> REAL
>>>> efficiency, dump LEDs and use decent discharge lamps. Those puppies
are
>>>> seriously efficient.
>>> None of these LED assemblies that replace a conventional globe comply 
>>> with
>>> the ADRs, ECE (European) or DOT (USA) regulations.  In all cases, the 
>>> light
>>> source is intended to be a filament, the position of which is
carefully
>>> defined within the globe relative to the mounting base.
>>>
>>> The lamp assembly is designed around the defined light source, ie
light
>>> emanating from a filament within a carefully defined envelope inside
the
>>> assembly.  Fit something other than the correct model of globe and the

>>> lamp
>>> assembly is assumed to not comply with the relevant regulations unless

>>> the
>>> modified assembly (ie fitted with LED assembly = modified) is tested
to 
>>> the
>>> standard again.
>>>
>>> Similarly, placing discharge (HID) bulbs into housings intended for 
>>> halogen
>>> globes will not comply.  The light source will not be emanating from
the
>>> correct position to be correctly focussed by the reflector and lens.
>>
>> **None of which I dispute. What I do dispute is the claim that LEDs are

>> automatically far more efficient than incandescents.
>
> True, it's simply a matter more of them are needed than a
> single filament.

**Not necessarily. A Luxeon emitter or a Cree LED could easily equal a 20 
Watt brake lamp. With a suitable reflector and lens, it would be 
appropriately visible from the sides too. Cheap replacement LED assemblies

do not use Luxeons or Cree devices. They use cheap, narrow beam LEDs.

>
> Their response time is superior, they are either on or off and
> that happens instantly unlike filament.

**Yes, no, yes. Their response time is faster. They are not necessarily 
either on or off.

>
> I played about with LED lamps in standard tail lights, even bent
> the leds on the plug in PCBs at angles - they don't work, I would
> not pass them.

**You need to look at a Luxeon device. They're available in 120o patterns.

>
> HID and LED is all fine - better technology, however lenses and
> housings, as Athol mentions, have to match.
>
> Gas discharge lamps are prolly the best.

**All quite true.

Trevor Wilson