Jump to content
Volvospeed Forums

Qbm 850 Amber Fogs


Slater

Recommended Posts

  • Replies 31
  • Created
  • Last Reply

i found a lot of articles arguing different.

"Investigations and practices of automobile traffic do not confirm any substantial advantages of yellow light over white light. The advantages ascribed to it may take place only in very thin fog or may be subjectively received by some drivers owing to their individual peculiarities of vision. Therefore, it does not make any sense to switch over headlights to yellow light, although the use of yellow light in special fog lights does not raise any objections."

here's a good one

(1) yellow lamps suffer less backscatter into the eyes of the

car's driver than blue or green, allowing them to see better in the fog;

The first point is true for light scattered off very tiny aerosol particles in

fog -- blue light is scattered out of the path from the sun to the viewer of a

sunset, leaving white light minus blue to reach the observer... so he/she sees

yellow/red -- but is pretty irrelevant for the kind of yellow lights used for

fog lamps. Those lamps were generally made by putting yellow filters over a hot

tungsten filament incandescent lamp, so that a lot of light is lost in trying to

make the yellow light -- reducing the brightness available for the driver to

see, which is not such a good idea. Using a halogen gas fill increases the

brightness of the bulb, but the same general principle of reduced brightness

still holds. Additionally, the size of water drops in fog is generally not

appropriate for producing the kind of scattering I mentioned above -- if so,

headlights would appear very red to oncoming traffic, which they don't.

"http://www.madsci.org/posts/archives/jul99/932144187.Ph.r.html"

Link to comment
Share on other sites

i found a lot of articles arguing different.

You're right. There's arguements either way.

Let's just say however that the arguement FOR yellow was strong enough for the entire French govt to require it on all vehicles. Now, they don't require it anymore, but I don't know if that was because automakers were sick of catering to one govt's market, or if it was just disproven.

But it boils down to preference.

I don't think I would like yellow in my headlights, but the stock fog lights are comical at best, so I wouldn't really say the arguement for or against yellow really has any merit.

Now, with high wattage bulbs the story may change. I will just have to see once I get mine. But then again, I do very little driving in true "cut with a knife" fog. So I use mince more for driving lights and/or additional light fill or even looks. So from that aspect amber/yellow is what I like. On a black car I think it looks badass.

- Slater

Link to comment
Share on other sites

You're right. There's arguements either way.

Let's just say however that the arguement FOR yellow was strong enough for the entire French govt to require it on all vehicles. Now, they don't require it anymore, but I don't know if that was because automakers were sick of catering to one govt's market, or if it was just disproven.

But it boils down to preference.

I don't think I would like yellow in my headlights, but the stock fog lights are comical at best, so I wouldn't really say the arguement for or against yellow really has any merit.

Now, with high wattage bulbs the story may change. I will just have to see once I get mine. But then again, I do very little driving in true "cut with a knife" fog. So I use mince more for driving lights and/or additional light fill or even looks. So from that aspect amber/yellow is what I like. On a black car I think it looks badass.

- Slater

oh i agree... yellow fogs are hot

Link to comment
Share on other sites

I thought I woudl way in here. I really like my yeller driving/fog lights. easy on the eyes, but oooooohh so helpful. Here are two pics of them in the dark. They are actually blue because of the lense during the day. Xenon bulb as well.

I have since gotten clear corners and yellow bulbs to match fo the corners and sidemarkers.

FET Catz

eBay listing for my actual fog lights

Catz1.jpg

Catz3.jpg

Link to comment
Share on other sites

MAN ... those are NOICE !!! Are they straight-up bolt-on?

I agree - those are SWEET. Are the driving lights or fogs?

CATZ makes really nice quality lights. I've owned a number of CATZ products in the past and have been happy with all of them.

Link to comment
Share on other sites

I will let you know in a few days when my yellow bulbs arrive.

OK, just as an update. I got my new yellow H3 fog bulbs and they definitely helped increase the brightness of the stock fogs. It's not 10xs brighter but I would say it's about 50% brighter. I also pointed them up slightly which also made a difference.

I didn't take any pics because I am lazy, didn't get to install 1 new bulb only so I could take comparisons of stock vs yellow bulb, and now that I aimed them higher the pictures would not have compared apples and apples.

For $20 I couldn't go wrong.

Link to comment
Share on other sites

MAN ... those are NOICE !!! Are they straight-up bolt-on?

I work at a machine shop, so things were easy for me, but could be done by anyone. I just had to drill two new holes in the existing R fog light bracket...thats it!

I really am amazed with the brightness :rolleyes:

Link to comment
Share on other sites

  • 3 weeks later...
  • 2 months later...

Archived

This topic is now archived and is closed to further replies.


×
×
  • Create New...