All of u are right but ur forgetting one thing these headlights are made by humans just like us not God we CAN modifiy them any way we can with just a little bit of skill and lots of common sense.
Btw the headlights i bought from infinit us for 800$ is not an aftermarket replacement but it is 100% genuine Nissan product .
Ok for the sake of argument lets assume u can never correct a left hand drive headlight and ur involved in an accident the headlight will be f**ked any way for insurance investigation.
trust me there is a adjustment inside the headlight to make projector look up or down or even left and right.
But since all of you are rocket scientists and knows ur shit like me so You electrical,magnetical, nuclear, supernatural,chemical mechanical biotechnicals geo physicist engineers are correct , Happy now?.
cheers
Remember a half empy glass of water is also half full of water too.