I have fully calibrated to manufacturer, and adjusted to state law angles, headlamps and they are 2019 LED and blinding to other drivers unless I point them slightly down. They are pointed down to the legal limit (I have a low car) and distance visibility at speed is problematic.

Their design flaws are many, but top among them is that their low beams are simply too collimated and too bright for safe use.

I wish I could (illegally) attenuate them in order to make them safer for other drivers. Is there a coating that I can apply to the sealed external lexan housing that will 1) diffuse and/or 2) uniformly dim their light output?