HID Xenon KitsHID Xenon Kits. 2 × D3S / D3R Xenon Bulb Holder Adapter Rings – HID Xenon Retainer Upgrade. ✔️ 2 × D3S / D3R Xenon bulb holder adapter rings. These retainers are suitable for many vehicles equipped with D3S / D3R Xenon headlight systems, including (but not limited to).
