changing from Euro-spec xenon to US-spec xenon

Do I need a software download for the DRL to function?

And yes I know the highbeams are less bright in the US-spec lights but I want them anyway.

If anyone is interested I'm selling my euro lights.
From time to time I have problems with the lights aiming way too low, I don't know if it's the headlights that are causing the problem or something else. I also get an error message that I can't really translate but it's something like this. "Light failiure contact volvo dealer"

Anyone with US-spec xenons for sale??