Replacement HID Headlight Ballast for BMW Xenon Headlights Key benefits Protects your lighting system: builtin overload protection, short circuit protection, and overheat protection help prevent damage to headlights and circuits. Reliable performance: maintains stable HID operation and reduces the risk of ballastrelated failures. Durable construction: metal housing provides strong heat dissipation and longlasting performance. Compatibility For BMW E65 series, model years 2002, 2003, 2004, 2005 Xenon headlights. For BMW 745i and 745Li, model years 2002, 2003, 2004 Xenon headlights. Product features Function: HID headlight ballast replacement to support proper Xenon headlight operation. Material: Metal housing designed to conduct and dissipate internal heat efficiently and resist damage. Performance: Helps protect the headlight circuit and maintain consistent illumination. Practical use scenarios Scenario 1: Replacing a faulty ballast in a BMW E65 Xenon headlight to restore full headlight performance and prevent further electrical issues. Scenario 2: Maintaining an aged Xenon lighting system by replacing a worn ballast to ensure consistent brightness and reliability on daily commutes. Scenario 3: Serving as a spare part for a service or automotive maintenance kit, enabling quick repairs during routine headlight service. Notes This is a replacement ballast designed for specific BMW Xenon headlight assemblies listed above. Built to protect and support the headlight system while delivering durable, longlasting performance.