That's the part that gets me. Everyone complains how stupid, careless, and illegal it is, to go and install these cheap Amazon aftermarket LED's to incandescent filament headlight units. Because the reflectors are not designed for them. Or how the entire unit has to conform to LED lighting "standards". (Of which there appear to be none).
Or how a cop will bust you for doing it. And on and on.... Well my question is how do the automakers get away with designing and building their blinding, crummy headlights they install on these factory cars and trucks? Where is the DOT testing?
As was mentioned, on low beams you end up overdriving them at anything over 35 MPH. So most drivers will go to high beams instead. Just so they can see far enough down the road to stop. This is especially true on dark rural roads.
Or else you have these big 1 ton plus pickups, that will blind you on any setting. Who's designing these things at the factory, Mr. Magoo? There seems to be a huge double standard as to what is legally tolerated, and what is not.