HID Ballast Headlight 63117440877 Headlights for tms Adaptive Drive Module Control Unit for BMW 5 Series 7381017 7440877

Features:Installation: Perfect assembly, high reliability, easy installation, no additional adjustment required.Perfect match with the old carCondition: Brand New and QualifiedStrict factory QC testing, qualified assuranceExcellent performance and waterproof and corrosionLong service life, not easy to damageIf you have any questions during shopping. Please tell us, we will reply to you within 24 hours and provide you with reference opinions!

• Features: This headlight control module is made of high-quality materials and features high strength, corrosion resistance, wear resistance, durability, high reliability, and a long service life.
• Product Function: The ballast converts AC power into DC power, filters it, and supplies it to the load or inverter. It also provides charging voltage for the battery, acting as a charger.
• Importance: The HID ballast is crucial because it powers the light bulb and allows current to flow through it, keeping it bright. Another important function of the ballast is controlling the current flowing through the bulb.
• Note: Please note that the most common cause of failure is water ingress. If your headlight has water ingress and the ballast has failed as a result, you may need to replace the headlight, as the replacement ballast may fail again.
• Satisfaction Guarantee: Guaranteed brand-new, high-quality HID ballast. If you have any product issues, please contact us and our friendly staff will assist you within 24 hours.