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E36 M3 (1992-1999) {Euro - S50 B32 321hp @ 7400 rpm} {U.S. - S52 B32 240 hp @ 6000 rpm}
Total Produced: 71,212 - Years Produced: 1992 to 1999


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Old Tue, Feb-20-2018, 07:01:12 PM   #21
M_Parallel
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Default Re: OEM Grade Bi-LED Projector Retrofit into Bosch Euro Headlights

Interesting, the heatsinks, as one big pro of leds is they hardly produce any heat. But I’m not familiar with leds In automotive headlights context.
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Old Tue, Feb-20-2018, 07:15:04 PM   #22
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Default Re: OEM Grade Bi-LED Projector Retrofit into Bosch Euro Headlights

p.s. since it’s bi-led, does this mean the original hi-beam is no longer used or you now have 2 hi-beams.
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Old Tue, Feb-20-2018, 07:22:30 PM   #23
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Default Re: OEM Grade Bi-LED Projector Retrofit into Bosch Euro Headlights

All my cars have 2 x highbeams per housing. It's the best free mod ever.
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Old Tue, Feb-20-2018, 08:06:44 PM   #24
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Default Re: OEM Grade Bi-LED Projector Retrofit into Bosch Euro Headlights

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All my cars have 2 x highbeams per housing. It's the best free mod ever.
Well, legally, over here, high beams can only be used with no oncoming traffic. And one already gives a ton of light.

We call high beam the one with most output (blue light on dash). And the regulat light you use at night the main beam. (Just to make sure we’re talking same lights here)
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Old Tue, Feb-20-2018, 08:07:47 PM   #25
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Default Re: OEM Grade Bi-LED Projector Retrofit into Bosch Euro Headlights

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Interesting, the heatsinks, as one big pro of leds is they hardly produce any heat. But I’m not familiar with leds In automotive headlights context.
LEDs produce less heat, but they're also way less tolerant to heat. They really cannot be run hotter than 50-60C, any hotter and they will quickly degrade and have a relatively short life.

An HID bulb doesn't really care if it gets up to 200-300C. So while it might be producing a larger heat load, it can get away with having a 200 degree delta between ambient and the bulb.
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Old Tue, Feb-20-2018, 08:24:21 PM   #26
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Default Re: OEM Grade Bi-LED Projector Retrofit into Bosch Euro Headlights

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Originally Posted by M_Parallel View Post
Well, legally, over here, high beams can only be used with no oncoming traffic. And one already gives a ton of light.

We call high beam the one with most output (blue light on dash). And the regulat light you use at night the main beam. (Just to make sure we’re talking same lights here)
It’s illegal here, too.

10 years in, I’m feeling confident it’s not an enforced law.

I have stupidly good projectors in the M3. 4 high beams is still a significant upgrade over 2.
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Old Tue, Feb-20-2018, 08:40:43 PM   #27
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Default Re: OEM Grade Bi-LED Projector Retrofit into Bosch Euro Headlights

How does this compare to an HID set up such as:

https://www.theretrofitsource.com/co...ellipsoid.html

Obviously I'm ignoring the fact that with the HID set up you have a bunch of extra hardware to deal with.

I'm just wondering in terms of usable light output only since the HID route is significantly cheaper.
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Old Tue, Feb-20-2018, 09:23:33 PM   #28
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Default Re: OEM Grade Bi-LED Projector Retrofit into Bosch Euro Headlights

That should be a good kit. Can’t comment on Bosch fitment. I got the LED kit for $270 shipped open box.
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Old Tue, Feb-20-2018, 09:29:41 PM   #29
Earthwormjlm
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Default Re: OEM Grade Bi-LED Projector Retrofit into Bosch Euro Headlights

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Originally Posted by I M Legend View Post
How does this compare to an HID set up such as:

https://www.theretrofitsource.com/co...ellipsoid.html

Obviously I'm ignoring the fact that with the HID set up you have a bunch of extra hardware to deal with.

I'm just wondering in terms of usable light output only since the HID route is significantly cheaper.
The HID should put out more light. 35W HIDs are in the 3000-3500 lumens range. You could always use 50W too on some projectors.

The Morimoto kit states 2812 lumens. That's actually fairly low on the lumens per watt scale for LEDs. If they had gone with modern tightly packed discreet dies on their PCB, they could have done much better (130-150 lumens is possible). Instead, they went for a large and inexpensive COB in a custom shape. I imagine we'll see significantly more light output in a year or so, or less power usage.

Still, even for sort of a first gen retrofit product, it's pretty damn close to a mature HID kit.

Definitely there are diminishing returns though, 2800 lumens is a lot, that's 100% more light than a hallogen bulb.

I have that kit you linked by the way in my ZKW headlights. It fit fine, however if I had the choice when I did my retrofits, I'd go LED.

Last edited by Earthwormjlm; Tue, Feb-20-2018 at 09:34:58 PM.
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Old Tue, Feb-20-2018, 10:28:29 PM   #30
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Default Re: OEM Grade Bi-LED Projector Retrofit into Bosch Euro Headlights

Any idea how many lumens a 50w kit puts out?

Curious because I’m running them in all my cars
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Discussing OEM Grade Bi-LED Projector Retrofit into Bosch Euro Headlights in the E36 M3 (1992-1999) Forum - {Euro - S50 B32 321hp @ 7400 rpm} {U.S. - S52 B32 240 hp @ 6000 rpm}
Total Produced: 71,212 - Years Produced: 1992 to 1999 at BMW M3 Forum.com (E30 M3 | E36 M3 | E46 M3 | E92 M3 | F80/X)