The INFINITI FX50 high beam and low beam headlight bulbs both utilize the D2S bulb size. The replacement chart covers vehicle production spanning 2009 to 2013.
The year-by-year compatibility chart below provides a quick reference to verify the correct bulb size for your vehicle.
The Infiniti FX50 uses the D2S bulb for both high beam and low beam headlights across all model years from 2009-2013.
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-voltage ignition requirement typical of HID technology before the arc stabilizes to a lower operating voltage.
The D2S uses a P32d-2 base, a standardized fitting specific to HID projector applications, and it is not interchangeable with halogen or LED base types.
The D2S designation is specific to projector-type headlight housings, which use a lens and reflector system to focus the arc light output. It is not compatible with reflector-type housings, which require the D2R variant instead.
The D2S requires an external ignitor to generate the initial high-voltage pulse needed to strike the arc. This ignitor is a separate component from the ballast and must be present in the headlight assembly for the bulb to function.
The D2S conforms to ECE (Economic Commission for Europe) standards, indicating it meets internationally recognized photometric and safety requirements used across European and worldwide markets.
Because both the high beam and low beam positions on the FX50 use the same D2S bulb, the projector housing controls beam pattern switching mechanically rather than through separate bulb elements.