# Bright, blue-white headlights

**URL:** <https://boards.straightdope.com/t/bright-blue-white-headlights/642110>\
**Category:** Factual Questions\
**Created:** [November 25, 2012, 11:29pm UTC](https://boards.straightdope.com/t/bright-blue-white-headlights/642110 "2012-11-25T23:29:07Z")\
**Posts on this page:** 7\
**Page:** 1

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**Author:** ![Johnny\_L.A](https://sea3.discourse-cdn.com/straightdope/user_avatar/boards.straightdope.com/johnny_l.a/32/1084_2.png) [@Johnny\_L.A](https://boards.straightdope.com/u/Johnny_L.A)\
**Post date:** [November 25, 2012, 11:29pm UTC](https://boards.straightdope.com/t/bright-blue-white-headlights/642110/1 "2012-11-25T23:29:07Z")

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The headlights on my 2005 Prius are bright and blue-white. I like them, compared to the ‘standard’ (yellow-white) headlights I’ve had over the years.

1. What kind of lamps are these?

2. I think my 1999 Jeep Cherokee has sealed-beam headlights. Do they make sealed-beam replacement lamps like the ones I want?

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**Author:** ![beowulff](https://sea3.discourse-cdn.com/straightdope/user_avatar/boards.straightdope.com/beowulff/32/542_2.png) [@beowulff](https://boards.straightdope.com/u/beowulff)\
**Post date:** [November 25, 2012, 11:37pm UTC](https://boards.straightdope.com/t/bright-blue-white-headlights/642110/2 "2012-11-25T23:37:30Z")

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They are probably HID.  
You can get a conversion [kit](http://www.hidextreme.com), but they’re not cheap.  
You can also get tinted bulbs, but they just look like HID, without being as bright.

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**Author:** ![Johnny\_L.A](https://sea3.discourse-cdn.com/straightdope/user_avatar/boards.straightdope.com/johnny_l.a/32/1084_2.png) [@Johnny\_L.A](https://boards.straightdope.com/u/Johnny_L.A)\
**Post date:** [November 25, 2012, 11:46pm UTC](https://boards.straightdope.com/t/bright-blue-white-headlights/642110/3 "2012-11-25T23:46:49Z")

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‘Xenon’ was the word I was looking for, which I see are also called ‘Xenon HID’.

Your link doesn’t list the Cherokee XJ, but I’m sure I can find a suitable conversion then the time comes.

Thanks.

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**Author:** ![jz78817](https://sea3.discourse-cdn.com/straightdope/user_avatar/boards.straightdope.com/jz78817/32/1028_2.png) [@jz78817](https://boards.straightdope.com/u/jz78817)\
**Post date:** [November 26, 2012, 12:06am UTC](https://boards.straightdope.com/t/bright-blue-white-headlights/642110/4 "2012-11-26T00:06:56Z")

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DO NOT CONVERT YOUR JEEP TO HIDs.

#1 you can’t because it has sealed-beam headlamps,  
#2 even if it had modern-style halogens, swapping in HID capsules is a bad idea because the “focal point” of an HID capsule is all wrong and reflector housings will splash poorly-focused bluish light all over the place.

blue-tinted light is practically the _worst_ thing you can have for headlamps.

[http://www.danielsternlighting.com/tech/bulbs/Hid/conversions/conversions.html](http://www.danielsternlighting.com/tech/bulbs/Hid/conversions/conversions.html)

don’t do it.

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**Author:** ![beowulff](https://sea3.discourse-cdn.com/straightdope/user_avatar/boards.straightdope.com/beowulff/32/542_2.png) [@beowulff](https://boards.straightdope.com/u/beowulff)\
**Post date:** [November 26, 2012, 12:09am UTC](https://boards.straightdope.com/t/bright-blue-white-headlights/642110/5 "2012-11-26T00:09:04Z")

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> [@Johnny\_L.A](#):
>
> ‘Xenon’ was the word I was looking for, which I see are also called ‘Xenon HID’.
> 
> Your link doesn’t list the Cherokee XJ, but I’m sure I can find a suitable conversion then the time comes.
> 
> Thanks.

You need to be a bit careful.  
True HID lamps are arc lamps. They use Xenon gas to create usable light immediately upon startup. Since HID lamps are expensive (and coveted), there are a lot of “cheap junk” lights out there that are just Quartz Halogen. Some of these may be called “Xenon HID-style” lamps or something similar. Make sure you know what you are buying.

Here’s some [discussion](http://www.candlepowerforums.com/vb/showthread.php?73986-HID-vs-Xenon-vs-Halogen).

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**Author:** ![smithsb](https://sea3.discourse-cdn.com/straightdope/user_avatar/boards.straightdope.com/smithsb/32/12107_2.png) [@smithsb](https://boards.straightdope.com/u/smithsb)\
**Post date:** [November 26, 2012, 3:39am UTC](https://boards.straightdope.com/t/bright-blue-white-headlights/642110/6 "2012-11-26T03:39:01Z")

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It’s not just bulbs. The housing is different, lens are different, voltages and electronics are different. If the Xenon’s weren’t an option on your vehicle, I don’t see a conversion going well. You could be in for an expensive ride with; stuff that won’t work, might be stolen, might damage the rest of your electrical system including the computers $$$$$.

Checking Edmonds, I don’t see Xenons as standard or an option in 2005 on a Prius.

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**Author:** ![Pacific420](https://avatars.discourse-cdn.com/v4/letter/p/e9bcb4/32.png) [@Pacific420](https://boards.straightdope.com/u/Pacific420)\
**Post date:** [November 26, 2012, 4:03am UTC](https://boards.straightdope.com/t/bright-blue-white-headlights/642110/7 "2012-11-26T04:03:38Z")

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had modern-style halogens, swapping in HID capsules is a bad idea because the “focal point” of an HID capsule is all wrong and reflector housings will splash poorly-focused bluish light all over the place.

I suppose this is why, when I meet one of these cars on the road, they get my high beam
