Feature 1Part Number: Control unit replace part number are A2189009303,2189009303,1668203589, A1668203589 for reference. Please check the number before ordering. 2Vehicle Fitment: Module is replacement for Benz GLAClass 20142016, replacement for Benz AClass W176 20132016, replacement for Benz CLAClass C117 20132016. 3Powerful Function: The headlight ballast module stabilizes current flow, protects the xenon bulb and flame lighter, and provides stable lighting effects. 4Durable Construction: High strength aluminum construction for maximum durability, powerful performance ensures professionalism and practicality. 5Ideal Replacement: High precision and exquisite workmanship to meet your needs, allowing you to directly replace the original damaged one.Item Type:LEDHeadlightControlUnitMaterial: AluminumReference Part Number:A2189009303,2189009303,1668203589, A1668203589Applicable Position:Headlights left and rightInstallation Mode:Direct replacement installationFitment:ReplacementforBenzGLAClass20142016ReplacementforBenz AClassW17620132016ReplacementforBenzCLAClassC11720132016 .wang-edit-text{ font-family:'Arial' !important; } .wang-edit-text table { border-top: 1px solid #000; border-left: 1px solid #000; } .wang-edit-text table td, .wang-edit-text table th { border-bottom: 1px solid #000; border-right: 1px solid #000; padding: 3px 5px; } .wang-edit-text table th { text-align: center; }Package List1 x HeadlightControlUnitNotePlease double check the part number of your item, matching information is for reference only.