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Got a Mercedes or BMW with a flickering or dead xenon headlight?

It might be the ballast.

This WFYB D1S HID ballast is a direct replacement for a whole bunch of popular European models.
It fits Mercedes part numbers like A1669002800, A1729015400, and A2229003300, as well as BMW numbers like 6311731740 and 63117255724.

This is a brand new, DOT-certified control unit module that includes the ballast itself.

It mounts on the front, left, or right side of your vehicle.

With a 1-year warranty, it's a reliable fix to get your bright, white xenon lights shining properly again.

Don't drive in the dark—swap out that bad ballast today!

4.7 out of 5