Originally Posted by Wiscon_Mark
No, even the regular style lenses are much much better than the USDM. DOT standards here were lax and we got ripped because of it. Makes no sense if better lights had to be designed anyways, honestly.
And you're backwards on RHD/LHD.
BTW- mainland europe is the same as the US. Only the UK drives on the opposite side like Japan.
Yes, the main difference between EDM headlights and USDM headlights is where the law says light should be focused. A lot more light is required under US traffic law to be directed upwards to illuminate signs and the like vs. the European laws that calls for more light to be directed towards the front.
That's why on older cars in the US, the beam pattern looks pretty diffuse, while on a European car of the same vintage, the beam pattern is more focused to the driver's field of view.