Recommendations for LED fog lights

Plugs in fine. But LED are polarity sensitive, hence diode in the name. Apparently ones I bought are opposite of the truck. Not looking to modify truck wiring for $10 bulbs. Going to looks, not so much for light output

 

Care to share actual evidence as to why?

I've yet to see any scientific reason that color, beyond working near our visual sensitivity range (guess what? white is closer than yellow), makes a lick of difference.

 

Less reflection. Illumination provided is more usable. Brighter is not better under those conditions. Its why OEs wire so that fogs only work with low beam, since high beam should not be used. Distance illuminated is not as critical because safe driving speeds are greatly reduced already.

Of course the lens and reflectors are the most important components of any fixture. W/o good ones it won't matter the lamp type or wattage. Color can just improve visibility under specific conditions, indoors, outdoors, vehicles or other. Like using a red lens cap on a flashlight allows illumination for safe walking but doesn't damage your natural night vision.

 

Yellow and white light reflection is immeasurably similar in dust, water, ice, and fog.

Yellow is more damaging to your night vision than white, by the way. The red light for night vision is for a very different reason than total light output. It has to do with your eyes and how they act in low light and high light conditions.

Fogs should, realistically, be used WITHOUT the low beams. Definitely without the highs. It's not because of quantity of light or color, just the direction you use it in. Fogs should be low and aimed low, to minimize interaction with fog. Of course, this looks their ability for both speed driving... And like you said, that's okay because you should be slowing down for that bad of driving conditions anyways.