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      04-21-2008, 09:21 AM   #23
denial
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mario, any updates?
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      04-21-2008, 11:23 AM   #24
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Quote:
Originally Posted by lib View Post
Before you get LED replacement bulbs you may want to look at this thread on e90post. The guy (and a few others) bought the $300+ PIAA LEDs and was disappointed with the day-time results. It may just be this product and not all LED solutions but it is definitely something to be aware of:

http://www.e90post.com/forums/showthread.php?t=134931
yea, that's why i want this to work, cause it costs 1/10th the price.
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      04-21-2008, 12:44 PM   #25
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Okay, now if the bulb mounting solution on the 135 is anything resembling the E92 335, I am not surprised that it is hard to get either LED's or very blue incandescents to work well.

I have a set of incandescents (MTec's from ebay) - I think they are 4200k - and while a measurable improvement over stock, they still don't match the Xenons. But at least, the intensity is at least as good as stock.

The more blue tint you add to the glass of an incandescent bulb, the less light it outputs (mainly because incandescents don't generate a lot of blue-wavelength radiation). That is why the higher you go with the Kelvin (the bluer the lights) the dimmer they will be.

Switching out to LED's this problem goes away, but now you start having topological problems. As far as I could tell when swapping out the stock bulbs, the OEM locations are not very well optimized to take the light from all around the bulbs - they seemed to me to mostly take light from directly in front of the bulb.

But LED bulbs have most of their LED components on the sides of the bulb - so they don't generate a lot of light directly in front of them.


The E90 (sedan) system uses a specialized bulb with a carefully designed light output beam (straight ahead), which is why they can get truly spectacular (albeit expensive) aftermarket replacements.


I imagine most of you already knew some of this, I guess I'm just pointing out how poorly designed the OEM light path and socket are. Unless someone designs an H8 LED solution specifically just for our cars, I am not sure we will have the results we want. :iono:
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      04-21-2008, 01:48 PM   #26
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Yea, I dont understand why BMW didn't have the same layout for both e90 and e92. I don't think i've seen any bright LED replacements for the e92, it doesn't look bright enough during the day.
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      04-21-2008, 02:19 PM   #27
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Quote:
Originally Posted by adc View Post
Okay, now if the bulb mounting solution on the 135 is anything resembling the E92 335, I am not surprised that it is hard to get either LED's or very blue incandescents to work well.

I have a set of incandescents (MTec's from ebay) - I think they are 4200k - and while a measurable improvement over stock, they still don't match the Xenons. But at least, the intensity is at least as good as stock.

The more blue tint you add to the glass of an incandescent bulb, the less light it outputs (mainly because incandescents don't generate a lot of blue-wavelength radiation). That is why the higher you go with the Kelvin (the bluer the lights) the dimmer they will be.

Switching out to LED's this problem goes away, but now you start having topological problems. As far as I could tell when swapping out the stock bulbs, the OEM locations are not very well optimized to take the light from all around the bulbs - they seemed to me to mostly take light from directly in front of the bulb.

But LED bulbs have most of their LED components on the sides of the bulb - so they don't generate a lot of light directly in front of them.


The E90 (sedan) system uses a specialized bulb with a carefully designed light output beam (straight ahead), which is why they can get truly spectacular (albeit expensive) aftermarket replacements.


I imagine most of you already knew some of this, I guess I'm just pointing out how poorly designed the OEM light path and socket are. Unless someone designs an H8 LED solution specifically just for our cars, I am not sure we will have the results we want. :iono:
yup installed them on saturday and just like adc said there is not enough output on the front of the bulb to be able to sufficiently light both rings. ill post pics up when i get home tonight but for the most part even though the leds were very bright the actual ring output were very dim and there was barely any light come from the outer ring.

I guess its back to the ol' 8500 GPs.
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      04-21-2008, 02:23 PM   #28
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Quote:
Originally Posted by Mario213 View Post
yup installed them on saturday and just like adc said there is not enough output on the front of the bulb to be able to sufficiently light both rings. ill post pics up when i get home tonight but for the most part even though the leds were very bright the actual ring output were very dim and there was barely any light come from the outer ring.

I guess its back to the ol' 8500 GPs.
Thanks for trying it out.. geez I am going to order my GP's now too... :smile:
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      04-22-2008, 11:40 AM   #29
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Quote:
Originally Posted by Mario213 View Post
yup installed them on saturday and just like adc said there is not enough output on the front of the bulb to be able to sufficiently light both rings. ill post pics up when i get home tonight but for the most part even though the leds were very bright the actual ring output were very dim and there was barely any light come from the outer ring.

I guess its back to the ol' 8500 GPs.

again thanks for trying :smile: apparently Umnitza have H8 LEDS :smile: but havent seen any thing yet. GP's the way forward for now
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      04-24-2008, 07:55 PM   #30
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Here's what my GP 8000k H8s look like installed -
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      04-24-2008, 09:16 PM   #31
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Originally Posted by Colorob View Post
Here's what my GP 8000k H8s look like installed -
So are these halogens or HIDS?
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      04-24-2008, 10:07 PM   #32
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Quote:
Originally Posted by Colorob View Post
Here's what my GP 8000k H8s look like installed -
how come my 8500K thunders aren't as bright
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      04-25-2008, 11:24 AM   #33
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Quote:
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how come my 8500K thunders aren't as bright
thats why i am asking if those are even halogens lol.. they look pretty bright and sharp unless he changed the contrast or something using PS lol...
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      04-25-2008, 03:16 PM   #34
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Hey guys - it's the 8500k GPs like everyone else has - sorry. They look so bright because the picture was taken in my dark parking garage. They are much dimmer in daylight! Here is what they look like with the new 6000k HID main bulbs I put in as well.
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      04-25-2008, 03:28 PM   #35
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so the 6000K main headlight bulbs are alot bluer?
how much were they?
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      04-25-2008, 03:33 PM   #36
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We had a chance to test the H8 LEDs and they were just not up to par in terms of light output. They were much dimmer than stock and the color was not that great.

I'd recommend going with the Predator Xenix H8 bulbs which are a xenon colored halogen replacement. They will maintain the stock output and upgrade the color to a pure xenon white.
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      04-25-2008, 05:17 PM   #37
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Quote:
Originally Posted by silverbullet135i View Post
so the 6000K main headlight bulbs are alot bluer?
how much were they?
They are definitely more blue than stock - which is pretty much white.... but they don't look too blue in my opinion. I paid about $200 for the pair.
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      05-14-2008, 12:32 PM   #38
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So how do we install the main HID and with what bulb?
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