On Fri, 07 Feb 2020 16:04:55 GMT, John Not.responding.@dotcom wrote:

Cars with normal bulbs replaced with LED are the worse as the LED light
source is not quite where the filament was. Therefore there is some
scatter.
Dirty lenses also scatter the light.

You're not supposed to use LED bulbs in car headlamps with
conventional reflector bowls; it's a *seriously* daft idea.