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xB low beam light pattern issue

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Old 12-19-2009 | 08:04 PM
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Default xB low beam light pattern issue

My wife has a 2008 xB and is always complaining about the low beam light pattern. When I drive it, I have to agree with her.

The top edge of the low beam light pattern has a hard edge. It doesn't fade from light to dark, the light area just stops. Almost as if there is a hooding over the top edge of the lights.

Has anyone else experienced this? Is there a solution? Different bulbs maybe?
Old 12-19-2009 | 08:20 PM
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That's how they're made, they're halogen projector low beams with a defined cut-off, that's how all projectors are. You are both used to halogen reflective housings which use a reflevtive housing to direct the light. Projector low beams project the light so it is more defined.
Old 12-19-2009 | 08:24 PM
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Originally Posted by Rik
Almost as if there is a hooding over the top edge of the lights.
There is, it's called a cut-off shield, and is designed to allow brighter low beams without blinding oncoming traffic.

FWIW there are "squirrel finders" inside the projectors that allow a certain amount of light to be kicked up higher than the cut-off so that you can read things like elevated street sign names, and see squirrels running in the trees.
Old 12-19-2009 | 08:33 PM
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Thanks for the responses. Is there anyway to move that "line" up a bit?
Old 12-19-2009 | 08:35 PM
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Yeah, there's an adjusting bolt behind the headlight housing that allows you to aim the light beam vertically. Take care not to adjust too high so you don't blind other drivers.
Old 12-19-2009 | 08:47 PM
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Yep, I just found that bolt. It's the one that has the slotted washer on it, correct?
Old 12-19-2009 | 08:59 PM
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This thread will show you exactly which bolt it is:
https://www.scionlife.com/forums/sho...d.php?t=112371

Ideally, you do not want the top of the cut-off light to be more than 32" above the ground when shining on a wall from 25' away. You could try a little bit higher, but if other drivers start flashing their high-beams at you, then you will know it's too high and you need to lower them a bit.

If you want more light out of the low beams, you might consider an HID conversion kit. Check out my before & after pics about 1/3 the way down page 2 of this thread:
https://www.scionlife.com/forums/sho...=161060&page=2

Last edited by CIONIDE; 12-19-2009 at 09:04 PM.
Old 12-22-2009 | 08:13 PM
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There is nothing you can really do to "fix" the issue. This is normal with almost all projectors. You can raise the beam up but you will annoy on comming traffic (as will with hids too).

I went from stock h11s, to hids, to h9 low beams with h9 fogs. The cutoff will still be there no matter what.
Old 12-22-2009 | 09:47 PM
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Old 12-22-2009 | 10:12 PM
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^^ That is the most screwed up looking cut-off I have ever seen.
Old 12-22-2009 | 11:45 PM
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Yeah, what happened?
Old 12-24-2009 | 06:58 PM
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It almost looks like someone removed something from the housing....
Old 12-27-2009 | 05:44 AM
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@caliban: You might want to try tightening those bulbs a little bit clockwise.
Old 12-28-2009 | 05:58 AM
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You and your wife may not like it, but the xB2 projectors are the brightest low beams I've ever experienced, and I like it !
Old 12-28-2009 | 02:25 PM
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Originally Posted by TrevorS
You and your wife may not like it, but the xB2 projectors are the brightest low beams I've ever experienced, and I like it !
x2

@OP: The standard halogens are quite impressive for light output. I mostly went with aftermarket HIDs so as to achieve an aesthetic light-blue look and also have even more light. The cutoff of these projectors prevents us from blinding people on the road. The squirrel finders are useful to me because I can see highway signs easier in the dark, which makes for finding roads easier and reading the text on signs a breeze.
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