One Pair (2) D2S 10000K Xenon HID Blue OEM Size Bulbs 35W TUV ISO9002 CERTIFIED More light output. A 35W HID light source produced up to 3 x the lumens at the light source when compared to a 55W halogen bulbs. 10000K Aftermarket Blue Popular Factory HID Headlight Upgrade Longer Life. HID lamps will last, on the average over 2 times as long as halogen bulb. HID Headlamp Replacement Bulb for your Luxury Car. Only compatible with D2S HID Headlamps.