This Haiteku Xenon HID ballast is a direct replacement for faulty AL Bosch (Automotive Lighting) ballast. It is a high-quality unit that can be used in different BMW and Mini Cooper models, including Coupe, Convertible, Clubman, Roadster, and more. The ballast supports D1S and D1R Xenon bulbs and has a rated lifetime of DOT 2000h.The ballast is a unit type, and the package includes one piece. It has an input voltage of DC 12V and a wattage of 35 Watts.