... Low defective rate 5 protective functions CE,Emark,FCC xenon HID manufacturer xenon HID factory(FCC,CE,EMARK APPROVAL with 6 years ),car HID xenon ... color temperature coherence.4,High luminance, match hid xenon auto light H1,H3,H4,H7,H8,H9,H11,H13,,H4/H ... voltage protection test. 4) Over voltage protection test. 5) Flash light concussion test. 6) Quakeproof capability test. 7) Cold & warm boot ...