... HID xenon ballasts: High quality and competitive price Low defective rate 5 protective functions CE,Emark,FCC xenon HID manufacturer xenon ... IR,ST),high efficiency, long lifespan, and low defect rate(<1%).6,Stable output frequency without Hertzian waves.7,Self-developed and ... 4) Over voltage protection test. 5) Flash light concussion test. 6) Quakeproof capability test. 7) Cold & warm boot test. 8) ...