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. Item Type: HID Headlight Ballast Material: Aluminium Alloy Supported Xenon Bulb Types: D1S, D1R, D2S, D2R Mounting Position: Left or right of headlight Application: Direct replacement of your existing parts, designed to meet or exceed OEM specifications, plug and play replacement, no coding or programming required OEM: 5DC009060 00 Fitment: Fit for E-Class W211 2003-2009 Fit for E-Class S211 2003-2009 1 x HID Headlight Ballast