Philips D4RC1 HID Headlight Bulb is a high-performance headlight assembly bulb that fits directly as a replacement for Subaru and Toyota vehicles. It is sold individually and can be used as a driver left or passenger right side bulb. The bulb is designed to fit Forester, Avalon, and Prius models, among others. It is a HID/Xenon bulb. The bulb is suitable for high beam or low beam lighting technology and is a performance part.  The Bulb is new but in a box that was dinged up some.