Genuine BMW E36 3 Series French Foglights

In 1936, during World War II, France needed a way to differentiate their vehicles from their nearby German enemies and identify the registration of the vehicle at night. The French transportation department felt changing the headlight colors of the cars would be the best way to easily decipher oncoming traffic. With further investigation and testing they found by using a yellow light it could reduce glare in inclement weather and differentiated themselves from the German automobiles. 

The French engineers realized that white light with the blue component removed (called "selective yellow") reduced glare and performed better in poor weather conditions. "Selective yellow" lights can improve a driver's ability to see in fog or rain because of the way the human eye interacts with different colors of light. Blue is a very difficult color for the human eye to process correctly because they are the shortest visible wavelengths and tend to focus in front of the eye's retina rather that upon it. Also, blue is difficult to look at because it naturally stimulates glare. A yellow lens will filter the blue from the light leaving a much reduced glare and improved inclement weather light. That is why using these French fog lights specifically will help increase visibility.

Because blue makes up such a small amount of a standard bulb's natural light, using a yellow lens does not filter out hardly any light produced from the bulb. It merely reduces the glare inducing blue spectrum from the light. Perfect for inclement weather!

Applications include all E36 3 Series

Genuine BMW parts sold per side

Bulb included