OE Replacement: Denso DDLT003
OEM GRADE: The Denso DDLT003 ballasts are original equipment on many modern Toyota, Lexus, and other Japanese vehicles that come with factory HID headlights.
UNFORTUNATELY: Headlight ballasts, like most car parts have a rated lifespan and sometimes don't even make it that long. Replacing them outside of warranty is never cheap either! This part usually runs about $400 from the dealership...ouch!