A2129005424 A2129008324 2129005424 2129008324 Car Light Module Front Lamp Control Unit Led Headlight Ballast For E Class W212 Material: The headlight ballast is made of aluminum alloy with a pin design, compatible with ultra-fast ballasts, highly practical, and significantly improves lighting performance Features: The daytime running light control ballast optimizes daytime running light performance through a regulated power supply, ensuring stable brightness and full functionality Replacement headlight driver module, high brightness and stable fit for many models。 Car xenon ballast kit, fast start light up without delay, silent operation without heat。, Manufacturer: DYOG