The Rolls-Royce Phantom high beam and low beam headlight bulbs both utilize the D2S size. The replacement chart covers 2004 to 2007 production years with corresponding bulb size specifications.
The year-by-year compatibility chart below provides a quick reference to verify the correct bulb size for your vehicle.
The 2004-2007 Rolls-Royce Phantom uses the D2S bulb size for both high beam and low beam headlights.
The D2S is a High-Intensity Discharge (HID) xenon bulb, meaning it produces light by creating an electrical arc through xenon gas rather than heating a filament.
D2S bulbs operate at 85 volts and 35 watts, which reflects the high ignition voltage characteristic of HID technology before the arc stabilizes at a lower running voltage.
The D2S uses a P32d-2 base, a standardized fitting specific to HID projector applications, and is not physically interchangeable with halogen base types such as H7 or H11.
The "S" designation in D2S indicates the bulb is designed exclusively for projector-type housings, as opposed to the D2R variant, which is intended for reflector housings and carries a painted shield to control light distribution.
D2S bulbs require an external ignitor to generate the initial high-voltage pulse needed to strike the arc, meaning the ignitor is a separate component from the bulb itself.
The D2S conforms to ECE regulations, a standard recognized across Europe and many other markets worldwide, governing light output, color temperature, and safety requirements for road use.
Because the same D2S specification applies to both the high beam and low beam positions across all four model years listed, beam switching in the Phantom is handled by the projector housing mechanism rather than by separate bulb types.