Mercedes W212 E-Class Headlight Ballast & LED Control Module Set - A2129005424 Replacement

Fix those flickering or dead LEDs in your Mercedes W212 E-Class headlights with this complete ballast and control module set.

It's a direct replacement for multiple part numbers including A2129005424, A2228700789, and A2189007306.

This kit comes with everything you need to get your headlights shining bright again.

It's a sealed assembly with the ballast built in, so installation is straightforward—just unscrew the old one and screw this one in.

The lights use LED technology and are DOT and SAE certified, so you know they're road-legal and safe.

Realray includes a 2-year warranty for peace of mind.

Whether your issue is on the left or right side, front of the vehicle, this module set is the fix.

Includes bulbs and ballast.