super bright,longer lifetime,and better price This HID ballast is designed specially to solve the problem of HID lamp for the brand car of Mercedes Benz, Volkswagen, Jaguar,Lincoln, Audi, Volvo. As you know very well, the luxury modern sedan have canbuss systemand sometimes it is not compatible with HID lamp. When you refit HID lamp for the car, you need the add the special warniingcanceller. But ...