Fog lamps are yellow to reduce light scatter, increase contrast and because your eyes are more sensitive to it. Ask yourself why skiers use yellow lenses in their goggles.
What you have on order is a pair of mini headlamps.
I understand the principle of less light scatter with yellow light but when you mix the yellow light from fogs with the far stronger whiter Xenon light the white light dominates, even in the foreground where the fog lamps are supposed to be working. The one time I have experienced fog when driving with xenons I noticed no difference/benefit when I put my fog lights on and visibility was around 100M through a thick fog patch.
The xenon's even in fog are far better for seeing and being seen, than standard halogens and not having Halogen fog lamps cannot be an issue if you don't get them when ordering LED's
To be honest I doubt I will ever turn on my front fogs now as current experience says xenons are good in there own right in fog for seeing and being seen, and I am changing the lamps purely for the aestheitcs when you lock and unlock the car, unless someone convinces me there is a genuine safety reason not to do so
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