Ballast headlight control unit, clear and bright light can help you identify the road ahead and obstacles more clearly, improving driving safety The headlight control module, or HID power regulator, provides the voltage required to activate the headlights and regulates the current to the headlights once they are illuminated For Sonata for Jaguar for Focus Xenon Lamp Computer Version Stabilizer Ballast FUNCTION - Headlight xenon ballasts use electronically excited gas to illuminate the HID xenon bulb, significantly extending its life while maintaining brightness levels. This makes it the best solution for improving visibility. Material: HID headlight stabilizer is made of metal + ABS material, which is wear-resistant, high temperature resistant and durable., Manufacturer: YUNLL