Ahh.....I don't think you looked at or read much from that link.
The ones you linked are HALOGEN, H4 lights, not HID, not projectors. ECE compliant lights ARE legal for us in Canada, but not at all in the US.
There is no such thing in this world as a legal/certifiable H4 HID...no where, no how. ALL H4 "HID" bulbs are either halogen or they are butchered HID capsules with a) a positioning solenoid to try to duplicate position of H4 elements by moving the capsule (almost works, but the light source has wrong geometry), dual HID capsules on one base (doesn't have a hope in hell of working, since the two positions for H4 light source are axially in line, and would be closer together than the diameter of the HID emitting area - thus making it geometrically impossible) or the ultimate in really bad deisgn: one HID capsule with a halogen bulb sitting in the wrong place (see reason under last light) to try to give some sort of high beam.
The ONLY HID lights in their catalogue are AVIATION lights, not, repeat NOT US DOT OR ECE COMPLIANT. Also, when someone sells aviation stuff, they are usually (read ALWAYS) careful to point out it's level of certification, type certificate approvals, PMA approvals, STCs for retrofitting, etc. Don't see any of that there.
The only thing that even comes close to an automotive lamp is the really mickey mouse (sorry Walt) "motorcycle" 7" lamp. They identify no DOT compliance (although it could be), but with a 35W halogen H8 bulb for high beam, you might as well just be taping a flashlight to the handlebars.
I don't know where there stuff is made, but I seriously doubt it is from the US. I have been to many, many manufacturing facilities, and you get a "feel" for the source by looking at the way things are done. Can't tell from poor quality photos for sure, but it certainly smells China mainland (possible Taiwan though - buyt they generally make stuff a whole lot more correct and credible than what I see on that website).
Do yourself a favour: read the Speaker stuff very carefully, then read the Spitzkraft stuff very carefully, then maybe visit Daniel Stern and have a look around. DS doesn't sell or promote Spitzkraft stuff because there is bad blood between him and the former owner of the rights to those lights (his employer), but he is able to be technically quite objective.