Going to make this simple HID / LED can be used in projector headlights halogen in either reflector or projector lights . HID /LED in reflector lights is going to get you a fail come MOT time
https://www.gov.uk/guidance/mot-insp...#section-4-1-4
fail is 4-1-4-c
Very few cars had HID in reflector lights ( lexus is the main one )
And I'm a current MOT tester , failing these weekly for the given reason