Question about installing better headlights

I have been reading a bit on the site about installing H4’s and 9007’s etc, but nothing about HID’s. I dont really know what the differences are other than cosmetic so feel free to point out of I am missing something.

Mainly what I have been reading is that you need to make some adjustments to the mounts in the headlight assembly on either stock or JDM one piece headlights. My question is though, are there any aftermarket one piece headlights, (non JDM) that come out of the box ready to suppord HID or other high lumens bulbs?

Thanks!