Made by Bosch, pulled off of a C43 a while back and retrofitted into my c230k. my car got in an accident with a tall truck that only destroyed the front part of the hood, grill, corner lights and oem xenon headlight assemblies. These ballasts were protected inside of the car. Insurance will only replace with original parts that came with the car meaning they will not replace with xenon housings, just normal halogens. These would make great replacement parts for people who have existing oem xenons on their w202. The price for just one ballast costs $300 at the dealership, I am selling these for $270. (not including overseas shipping from USA) please PM me or email at: email@example.com Thanks!