‘Xenon’s’ are arc lamp burners rather than incandescent bulbs. The components of HID are the xenon filled short-arc burner, the high voltage ballast and the higher voltage igniter.
Also, I can tell you have HID's from the photo you posted. LEDs have both lenses on each side and they are all illuminated with high or low beams. HIDs only use the outer lenses - the inner lenses are "dummies" to maintain the proper "BMW Look".
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