Original-equipment PhilipsŪ D1R Xenon HID bulb made in Germany. Exact replacement for reflector-type HID headlamps originally calling for D1R bulbs. All D1S bulbs have an ignitor box built onto the bulb base. It is best to replace these bulbs in pairs, because as they age, the color of their light changes. Replacing only one bulb of a pair will cause the two headlamps to emit light of noticeably different color. Save 26.00 for a pair!! |