XtremeVision 2003-2004 Lincoln Navigator (With Factory HID) Replacement HID Light Bulb 6000K- D1C / D1S / D1R XtremeVision&reg Premium HID Replacement Bulbs are Compatible with Your OEM Factory HID Ballast D1C fits Both D1R and D1S Replacement Bulb for your vehicle with Factory HID 100% Plug and Play Installation, No Modification Required 35W HID Light Source Produces Up to 3x the Lumens at the Light Source When Compared to a 55W Halogen Bulb 2 Year Hassle Free Warranty - Live Tech Support via Phone & E-Mail