see any H3 yellow fog bulbs around ?
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Fyrman
Top Post Dawg
http://www.danielsternlighting.com/products/products.html
He has "selective yellow" in 55w. Send him an email, he might be able to help you out too.
He has "selective yellow" in 55w. Send him an email, he might be able to help you out too.
Joe_Meehan
Top Post Dawg
Do you want yellow because you like the looks? I have seen a number of studies that the yellow color actually detracts from the usefulness of them.
dieseldorf
Top Post Dawg
Slave2school
Top Post Dawg
And I've actually read that yellow is the best colour for fog lights...who to believe in this crazy world.Joe_Meehan said:
Bmarc
Veteran Member
Slave2school said:
Old wives tale.
This theory is based on Rayleigh's principle that longer wave lengths (red, orange and yellow light waves) get refracted/reflected less then shorter wave lenghts (white light waves). This is only true if the object reflecting the light is extremely small. Fog particles are WAY to big to for this principle to actually work. So basicly the better fog light is the brightest light.
Slave2school
Top Post Dawg
Thanks Bmarc I guess that scholing is paying off 
It wasn't till rescently that france changed over to "normal" standards too.
It wasn't till rescently that france changed over to "normal" standards too.
Fyrman
Top Post Dawg
Nerd.Bmarc said:
(Excellent recorrect of another nerd's opinion however. J/K Jon!
)
Slave2school
Top Post Dawg
Someone should send this guy mail http://www.danielsternlighting.com/tech/lights/light_color/light_color.html
http://www.danielsternlighting.com/tech/lights/light_color/light_color.html
Fyrman
Top Post Dawg
'Er, yeah... that's a good idea.Slave2school said:Someone should send this guy mail
Bmarc
Veteran Member
That guy does bring up the fact the the human eye is more sensitive to yellow light. I don't know how much that actually helps though. Its really hard to test anything like this, it really all depends on the drivers preference.
Slave2school
Top Post Dawg
Well I know in my experience the Silver Stars although "whiter" sucked in the rain for some reason (but they were coated etc and the colour seemed to blend well into wet pavement) making it look like you had no lights on from the drivers seat.
Eyes and the way we percieve colours are hardly 100% understood and each person is different, I say do what makes you feel safest/looks the best to you.
Eyes and the way we percieve colours are hardly 100% understood and each person is different, I say do what makes you feel safest/looks the best to you.
Joe_Meehan
Top Post Dawg
Actually they are most sensitive to green light. But since making the light yellow, blue or green generally means filtering out the other colors you almost always end up with less total light and poorer vision when you try to color the light.Bmarc said:
Losha
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Bmarc said:
Joe_Meehan
Top Post Dawg
http://www.newton.dep.anl.gov/askasci/phy99/phy99xx4.htm
http://www.danielsternlighting.com/images/S-Yellow.pdf
I suggest that you consider the location of the fog lights as far more important than the color. Fog lights are generally located close to the ground. That is they will be away from the line of sight. That means they will reflect far less from the fog to the viewer than if they were directly in the same line of sight.
I saw this first hand with my Miata. The pop up headlamps put them right in the line of sight. Disabling them greatly reduced the kick back which was far worse than on any car I had before and allowed much better vision. At other times having the lights close to the line of sight was great because it increased the reflective effect of the painted lines on the road and road signs as well as eliminating shadows.
http://www.danielsternlighting.com/images/S-Yellow.pdf
I suggest that you consider the location of the fog lights as far more important than the color. Fog lights are generally located close to the ground. That is they will be away from the line of sight. That means they will reflect far less from the fog to the viewer than if they were directly in the same line of sight.
I saw this first hand with my Miata. The pop up headlamps put them right in the line of sight. Disabling them greatly reduced the kick back which was far worse than on any car I had before and allowed much better vision. At other times having the lights close to the line of sight was great because it increased the reflective effect of the painted lines on the road and road signs as well as eliminating shadows.
Losha
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- Joined
- Mar 8, 2005
- Location
- Sioux Falls, SD
- TDI
- 06 Jetta TDI DSG, 2001 Golf TDI, Audi S6, A8, Toureg
(Quote Joe_Meenan)
Yes, I read danielstern lighting explanation. I agree with you about the location, but we are talking about MKIV that have fogs in headlights. Color does matter too, in different weather conditions. Like I said that I have tried many different bulbs and none of them worked good as current ones.
Yes, I read danielstern lighting explanation. I agree with you about the location, but we are talking about MKIV that have fogs in headlights. Color does matter too, in different weather conditions. Like I said that I have tried many different bulbs and none of them worked good as current ones.
