This sounds like a great idea, especially for trucks. I don't know if 3/4 & 1-ton trucks have the same amount of movement when loaded, but most 1/2 tons I've owned or used suck.
I would seriously consider adding this feature to my Warlock if it moved the beam height sufficiently to offset a large load in the back and didn't cost too many body parts worth.
I've been wearing yellow lenses while driving at night for decades.
Driving in the city isn't nearly as bad as in rural areas, but most of my driving is rural and very dark before it's illuminated by headlights. Ferds & Jeeps with LED headlights seem to be the worst offenders, but sometimes a small compact car will have the LEDs set too high and even with the yellow lenses, I have to look away.
I recall frequently visiting friends at night, about 30 minutes away and, on occasion, misplacing the yellow lenses. I tried driving without, but quickly decided wearing regular dark sunglasses was easier on the eyes.
I agree, in recent years, the amount of LED headlights versus incandescent has exploded, at least in my area.
I've added a backup set of yellow lenses to the glove box, so I'm never without.
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