why do some cars xenon lights look blue?

[Sean-2.2Direct]

Can you fit headlight washers?

[Penfold101]

Yup - there's a how2 guide on here along with part numbers etc... I'm in the process of gathering all the parts for it to fit next month...

If you do some searching round you can get a lot of them cheaper than normal through eBay and otehr car parts sites...

[67688c]

As stated the light you are referring are indeed called 'Projector' lights
look like a couple of thick glass spot lamps (The outer pair)

Those outer 2 lamps are actually the dipped headlights, which are not very good. The main (high) beam which is quite good on the later facelifts are the 2 nearest the middle, and they use good old fashioned standard reflectors which seem to work quite well especially when fitted with a pair of uprated xenon bulbs.

[Ste]

The rating is to do with the frequency of light given off by a 'body' at different temperatures. Hence the 'K' for Kelvin bit.

This is the equivalent light 'colour' ratings.



As you can see, the 'hotter' the temp, the more blue it gets.

Here is the part that most interests car owners.

[Jay-C]

A lot of it is to do with the tint of the actual lens. Most factory fit HID's will be 4300k as they are in the Vectra but if you look you'll notice that the pre-facelift xenons have more of a blue tint than the facelift, both rated at 4300K just a different lens.

The HID-bulbs will colorshift when they get older.
"
The labled light color on an HID bulb is an average that it will maintain over 2-3000 hours. After passing around 100-500 hours the phenonmen "color shift" will take place. Color will change slightly from a yellowish tone to a crisper bluer tone. The magnitude of color shift will vary depending on brand, model and rated color. It is a very gradual change and unless paid close attention to, a customer might not notice. OEM 4100K Bulbs manufactured by Philips has been reported to have a more noticeable color shift than OEM 4100K Osram. OEM 4100K Bulbs manufactured by Philips has a colorshift of approx 250K after 500 hours, which will bring it to up to 4350K.
"


source:
http://faqlight.carpassion.info/hl-hid-bulbs.htm

[turbohaggis]

http://faqlight.carpassion.info/hl-hid-bulbs.htm

A very interesting article, thanks for posting.