Aublinto Xenon Ballast Bulb LED Module Xenon Hid Ballast Bulb Headlight Control Unit Headlamp Computer Control Unit Controller 63217217509 63117317408 Compatible for 2012-2015 3 Series 320i 328i 335i

Function: this headlight control unit provides the voltage needed to start the lamp and regulates the electrical current of the light once it is lit. A failed ballast will cause your bulb to burn.

High performance: this headlight ballast kit is designed to meet or exceed standards of original factory headlight ballast. Exact fit for plug-and-play. Manufactured from quality material, high strength and durability, which has a long service life.

Easy installation: this headlight ballast kit is engineered to stringent OE specifications, it is sure to exact installation and function the same or even better than the original part. Plug-and-play with no need to program or code the car.

Compatibility: this headlight ballast kit is compatible for 2013-2015 320i, compatible for 2013-2015 320i xDrive, compatible for 2014-2015 328d, compatible for 2014-2015 328d xDrive, compatible for 2012-2015 328i, compatible for 2012-2015 328i xDrive, compatible for 2012-2015 335i, compatible for 2012-2015 335i xDrive, compatible for 2013-2015 ActiveHybrid 3.

OE Part Number: 63117317408,63117316147,63117398766,63217217509.