Items Description High Quality Materials Made of High-Quality Materials With Good Conductivity and High Temperature Resistance, Maintain Stable Performance. Improve Headlight Brightness and Stability The Ballast Can Provide Stable Current and Voltage for The Headlights, Ensuring Brightness and Stability, And Effectively Improving Driving Safety. Xenon HID Headlight Ballast Module Lead Kit For Cadillac Escalade 2003-2006 Extending The Lifespan of Headlights Ballasts Can Effectively Reduce The Operating Temperature of Headlights, Reduce The Risk of Filament Burning and Other Mechanical Failures, And Extend The Service Life of Headlights. Security Protection Function Ballasts Can Provide Safety Functions Such As Overcurrent Protection and Overheating Protection, Effectively Preventing Safety Hazards Caused By Circuit Failures and Bulb Overheating. Manufacturer Part Number:12335983,19121438 Fit For Cadillac Escalade 2003-2006 Material: ABS+metal Color: as shown Package Contents: 1 Set Headlight Ballast Module Only the above package content, other products are not included. Note: Light reflection and different displays may cause the color of the item in the picture a little different from the real thing. The measurement allowed error is +/- 1-3cm.