[Replace Part Number ]A2189007206,A2129008122,A2129008224,A2129005324,A2129005211,A2129003417,A2229003600[Fit The Following Models]for W212 S212 A207 C207 E Class[HID headlight ballast replacement]Headlight Control Unit, a crucial part of HID lighting system, provides the voltage needed to start the lamp and regulates the electrical current of the light once it is lit. A failed ballast will cause your bulb to burn. Every ballast is designed to connect directly to your vehicle and requires NO programming or coding.[Premium quality ]made of premium aluminum for better heat dissipation and vibration resistance,6 protections against overpressure,low pressure,overheating,no-load,short circuit,reverse connection for more safety and durability[Fast startup & safe stability]built-in high pressure bag can current conduction speed & save power consumption for fast startup,also can protect high pressure bag from any dust & rain in the engine environment to enhance securitySpecification:Power: 35WBeam angle: 360'Waterproof rate: IP 68Operation voltage:DC 12VWorking temp: -40 Celsius, +80 CelsiusPart Number:A2189007206,A2129008122,A2129008224,A2129005324,A2129005211,A2129003417,A2229003600Fit for Vehicle Models:E Class Coupe C207 Facelift 2013, 2017E Class Convertible A207 Facelift 2013, 2014, 2015, 2016, 2017E Class Touring Estate S212 Facelift 2013, 2014, 2015, 2016E Class Saloon Sedan W212 Facelift 2013, 2014, 2015, 2016Colour:Black + SilverMaterial:metalPackage Contents:1* Headlight BallastOnly the above package content, other products are not included.Note: Light and different displays may cause the color of the item in the picture a little different from the real thing. The measurement allowed error is +\/- 1-3cm.