Feature:1. With the precision design, perfectly fit for manufacturer part number: 89076976, 4L09073912. Low current quick start, beyond the import of ballast, greatly improve the range and range of light.3. Adopt international advanced electronic ignition technology, stable high voltage output, less interference, strobe up to 10 million times without damage.4. The cold start current does not overshoot, and the lamp does not accelerate with super high power, which prolongs the service life of the lamp.5. Adopting imported ballast pin design, compatible with ultrafast ballast, it can be widely used, a good replacement for you.Specification:Item Type: Xenon BallastMaterial: Aluminum AlloyColor: SilverInput Voltage: 12VOutput Voltage: 85VOutput Power: 35WLife Expectancy: 4000HROperating Temperature Range: -40-105How to Use: No Need to Modify, No Programming Can Be Directly Plug and Play Installation, this Module Will Directly Replace the Above-Mentioned Vehicles Equipped With Xenon HID Headlights, Suitable for Left or RightOEM: 89076976, 4L0907391 / 4L0 907 391, 63117180050/63 11 7 180 050 / 63-11-7-180-050, 30784923, 15849727, 8301B395, 68051669A, 68086783AA, VAL43731 / 043731, 89032336 / 8301B395 / 35676ALSI42, 6224L8 / 6235488/93186542/7701208945Fitment: Fit for 135i 128i E82 E88Five Protection Functions of Ballast:Short Circuit Protection: If the line in the car encounters a short circuit, it will automatically cut off the power;Circuit Break Protection: automatic monitoring and control when the vehicle is powered off;Polarity Protection: automatic power off when the positive and negative poles are reversed;Overload Protection: automatic balance when the voltage and current in the car are overloaded;Load Protection: It is automatically supplemented when the voltage and current in the car are loaded..Package List:1 x Xenon BallastNote:1. Please double check the part number of your item, matching information is for reference only.2. If you are unsure of the item, please contact us before buying to avoid unnecessary return, thanks!