Features: 1.Vehicle Fitment: Fit for E?Class W211 2003?2009; Fit for E?Class S211 2003?2009. Supported xenon bulb types are D1S, D1R, D2S, D2R. 2.Replacing OE Number: The part number for reference is 5DC009060 00, please confirm whether it is consistent with the OE you need. 3.Function: Xenon headlight control module is used to convert voltage, stabilize current and protect pulse surges, so as to ensure that the headlamp works in a safe environment. 4.Durable Material: Made of aluminum alloy material, HID xenon ballast is heat dissipating, anti vibration, wear resistant, high temperature resistant, anti oxidation, sturdy and durable. 5.Ideal Replacement: Direct replacement of your existing parts, designed to meet or exceed OEM specifications, plug and play replacement, no coding or programming required. Specification: Item Type: HID Headlight Ballast_x000D_ Material: Aluminium Alloy_x000D_ Supported Xenon Bulb Types: D1S, D1R, D2S, D2R_x000D_ Mounting Position: Left or right of headlight_x000D_ Application: Direct replacement of your existing parts, designed to meet or exceed OEM specifications, plug and play replacement, no coding or programming required_x000D_ OEM: 5DC009060 00_x000D_ Fitment:_x000D_ Fit for E-Class W211 2003-2009_x000D_ Fit for E-Class S211 2003-2009 PackageList: 1 x_x000D_ _x000D_ HID Headlight Ballast Note: 1. Please double check the part number of your item, matching information is for reference only._x000D_ 2. If you are unsure of the item, please contact us before buying to avoid unnecessary return, thanks!