OTOZUM Xenon Ballast Compatible With For Q7 4L 2006 2007 2008 2009 Xenon H-ID Headlight Ballast Unit Controller Module 4L0907391 4L0 907 391 4L0907391A 4L0 907 391A

[Material]: The headlight ballast is made of aluminum material, which can make the heat conduction efficiency of the ballast shell higher, and the ductility of aluminum is better, so under the same coefficient conditions, aluminum can be made thinner, so aluminum The heat dissipation effect of the steel casing is much better than that of the iron casing. [Features]: The headlight ballast can speed the current driving speed and save the power consumption of quick start. It can also protect the car from the influence of rain in the engine environment and improve visibility. [Installation]: The installation steps of H-ID ballast xenon headlights are simple and do not require complicated tools. The plug-and-play design saves you time and makes your car more reliable and comfortable to drive. This ballast has stable performance and can directly replace your old ballast, saving you time and energy. Please confirm the OE number of your car HID ballast when purchasing. If you have any questions, please contact us and we will provide you with services in time!