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X5 E70 (2007 - 2013)
E70 BMW X5 produced between 2007 and 2013. Discuss the E70 X5 with other BMW owners here.

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  #26  
Old 01-30-2013, 08:36 PM
apw2607 apw2607 is offline
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LEDs have all sorts of benefits. They weigh less. They don't dissipate as much heat. They dont consume as much power so are more economical. The led will last longer.

They are the future and in time all cars will have full LED headlamps. Not the stupid glitzy halo rings or Audi style vanity lights. Full headlights.
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  #27  
Old 01-31-2013, 03:59 AM
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Stussy109 Stussy109 is offline
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Agreed, LED's are the lighting of the future for autos cars busiensses etc. The technology is already there, they just need to be more cost effective for regular consumers. They use minimal energy, have 20 year life spans, and produce little heat. I already have my home converted over to about 50% led bulbs.
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Last edited by Stussy109; 01-31-2013 at 04:00 AM.
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  #28  
Old 01-31-2013, 04:09 AM
smyles smyles is offline
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Quote:
Originally Posted by apw2607 View Post
LEDs have all sorts of benefits. They weigh less. They don't dissipate as much heat. They dont consume as much power so are more economical. The led will last longer...
While they dissipate less heat, LEDs themselves are more sensitive to heat, and as a result Audi R8 headlights (not sure about others) have cooler fans, so efficiency is rather relative here. Re longevity, let's see how it works in real life, I don't think there's enough empirical evidence to support the theory yet.

Last edited by smyles; 01-31-2013 at 06:56 AM.
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  #29  
Old 01-31-2013, 06:29 PM
Ripred Ripred is offline
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Quote:
Originally Posted by apw2607 View Post
LEDs have all sorts of benefits. They weigh less. They don't dissipate as much heat.
That's true in general, but high-powered LEDs are still somewhat inefficient and very sensitive to high temperatures so they still require a lot of heat-dissipating hardware (heatsinks and even fans, like people already pointed), which adds in extra weight and bulk, so the difference is not very significant.

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Originally Posted by apw2607 View Post
The led will last longer.
Theoretically - yes, however a lot depends on build quality of LEDs and their circuitry... We have LED traffic lights everywhere, I've seen plenty of them become defective after a year or so... Also, replacing full LED assembly (with multiple LEDs) can be much more costly than old-fashioned lightbulbs. Try and look at Audi forums how much the LED headlights cost to replace out-of-warranty, you'll be surprised.

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Originally Posted by apw2607 View Post
They are the future and in time all cars will have full LED headlamps.
Yes, they most likely will be in all future cars, BUT there's currently no NEED for full LED headlights at all in gasoline-powered cars (where their efficiency is basically irrelevant) aside from "cosmetic" effects They may last longer than xenon headlamps BUT you're paying up to $2000 for this option right now, you'll probably spend less than that on xenon lightbulbs (unless you have a defective ballast/bulb) over the lifetime of your car

Last edited by Ripred; 01-31-2013 at 06:31 PM.
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  #30  
Old 01-31-2013, 06:53 PM
NoI4plz NoI4plz is offline
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LEDS offer alot of benefits. However the cost is astronomical, and will be for at least another 2 model generations in BMW.

Look at this way:

halogens currently are the best. They are not wanted by car thieves, they are cheap to replace (bulb or assembly), they dont have adaptive hardware that can fail, they are easy to replace (dont have to be too careful when handling).

Xenons 2nd best. They are wanted by car thieves but not as the new LED tech, they arent really cheap to replace compared to LEDs, they are easy to replace compared to LED

LED worst option: They are in great demand by the number of thefts, they are NOOOOOOTTT CHEAP to buy or replace.

BMW offers Halogens for all 3 and below vehicles. Until thhat becomes standard xenons, the price of LED aint gonna be reduced.
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