Philips D1S XenStart HID Xenon Bulb 85415C1

85415C1 - Newest Release! PHILIPS HID (High Intensity Discharge) Lamp 35W D1S made in Germany - (Pack of 1); This is original factory D1S HID/Xenon replacement headlight/headlamp bulb with model# 85415C1. It can replace any D1S bulb even different branded D1S bulb. ///***Please note that we strongly recommend replacing both two bulbs at the same time in order to get even lighting output and color as all HID light bulbs do discolor to become bluer & whiter over usage and also get dimmer at the same time. Otherwise, replacing only one side with new bulb and having old bulb on the other side will give you un-even lighting color and brightness./// *** This is 100% authentic PHILIPS product made in Germany in real PHILIPS packaging box w/ security label. It's not the replica/copy version that are sold for $20 ea. *** Please do not use our bulb for trouble-shooting. Only order if you are certain that this is what you need. If you are not sure, please ask first. ***