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

"Scotty" <scoter1@[EMAIL PROTECTED]
> wrote in message 
news:4811a557$0$30462$afc38c87@[EMAIL PROTECTED]
>
> "Trevor Wilson" <trevor@[EMAIL PROTECTED]
> wrote in message
> news:67ded2F2mkgolU1@[EMAIL PROTECTED]
> :
> : "the_dawggie" <the_dawggie@[EMAIL PROTECTED]
> wrote in message
> : news:chfQj.4864$ko5.1139@[EMAIL PROTECTED]
> : > Scotty wrote:
> : >> "the_dawggie" <the_dawggie@[EMAIL PROTECTED]
> wrote in message
> : >> news:YudQj.4823$ko5.3502@[EMAIL PROTECTED]
> : >> ::
> : >> : Their response time is superior, they are either on or off and
> : >> : that happens instantly unlike filament.
> : >> :
> : >> :
> : >>
> : >> For automotive use, filament type lamps are fine, the time it takes

> to
> : >> fully illuminate is **** all compared to the reaction times of the 
> fella
> : >> behind you.  I dont think the additional millisecond will make any
> : >> difference what so ever!
> : >>
> : >> But as far as longevity LEDs are the way to go, should be
compulsary 
> for
> : >> every Taxi on the world.
> : >
> : > For auto use if set up properly they will be either on or off,
> : > which is different than incandescent bulbs which dim with age.
> : >
> : > There is a reason LEDs are being increasingly used world wide
> : > in traffic lights and motor vehicles. Retofit has to be an
> : > entire lighting unit replacement tho
> : >
> : > I'd go with HID for headlamps and LED for everything else,
> : > although LED has been used for headlamps.
> :
> : **A couple of years ago, I said that LEDs would never be much use for
> : headlamps (well, not in the next few years anyway). I've been forced
to
> : revise that opinion. Things have moved very quickly. Cree now have
white
> : LEDs with an output capability of around 100 Lumens/Watt. This is
close 
> to
> : HID lamps and LEDs have the potential to be significantly less
expensive 
> and
> : more robust. A good Halogen is around 25 - 30 Lumens/Watt, so all the 
> LED
> : guys need to do is increase power levels. This can be done with 
> multi-chip
> : arrays, but heat sinking remains a stumbling block. A 15 Watt LED gets
> : damned hot. You've got a 2 sq mm chip, with 100 sq mm of heat sink!
Heat
> : pipes and fans will address some of the issues. Still, if they manage 
> 200 -
> : 300 Lumens/Watt in the next few years, you can kiss halogens goodbye.
> : Especially those horrible (domestic) downlights. In fact, at 300
> : Lumens/Watt, there's little point in bothering with HID lamps in 
> automotive
> : applications.
> :
> : Trevor Wilson
> :
>
> 20 years ago a 12volt halogen downlight (lamp only) was approximately 
> $8.00. I see now that the LED
> array units are down to $5 already. Now you can buy four times as many
for 
> the same price. (You have
> to take into account that one transformer can now run many LED array 
> lamps). and get a nicer colour
> output while your at it.

**Trouble is, those LED arrays only deliver a fraction of the light 
delivered by a halogen. The arrays are approximately similar efficiency to
a 
halogen, but consume a lot less power. Therefore, they deliver a lot less 
light. You need to spend the big Bucks on Crees, Luxeons and others to 
really get some decent light output. And they are expensive. Very
expensive. 
It will not always be so.

>
> Id imagine that modern cars may get like the old jags (I think that they

> were Jags) where all output
> points (interior) were fed via Fibre optic and you only had a single
lamp 
> running the lot.  How
> simple would that me now. At the press of a button change all dash
colours 
> out of a single LED.
>
> Its getting a lot more efficient to use LED now that the technology has 
> improved thats for sure.

**All my dash lighting is LED. I used Luxeons. Too expensive for the mass 
market and I had to alter the dash lighting level control to suit LEDs (it

needs to be a current control, rather than a Voltage control) too. The 
payoff for me is that I don't need to worry about replacing lamps anymore.

Trevor Wilson