HID Xenon Ballast Gen BMW E90/91/92 335IDirect replacement with no modifications required. Perfect fit for your car. A good replacement for your fancy device.HID lamp control unit works well, the lamp is brighter, more stable, faster and provides excellent anti-interference.Car xenon headlight ballasts are waterproof, vibration proof and dustproof, and are used in difficult conditions.A ballast is a crucial part of a fluorescent or HID lighting system. HID (High Intensity Discharge) lamps are connected to ballasts that control the voltage and frequency of the current to ensure that the lamp receives the correct amount of current. Ballasts are usually mounted on the back or bottom of the headlight.Delivery Within 2 To 3 Working Days. Door To Door Delivery Within South Africa in major lying areasProduct Type : NewTerms & Conditions Apply To All Orders As Per Our Company Policy