Jaguar X-Type high beam headlight bulbs use H1 size, while low beam headlight bulbs use either H1 or D2S size depending on configuration. The replacement chart covers 2002 through 2008 vehicle 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 H1 bulb is the dominant type across the Jaguar X-Type headlight specifications, appearing in both the high beam position for all model years (2002-2008) and in the low beam position on halogen-equipped variants across the same range.
The H1 is a single-filament halogen bulb rated at 12V and 55W, fitted with a P14.5s base. It operates under ECE standards and holds approval in the US and Japan as well as Europe and worldwide markets.
The D2S is a high-intensity discharge (HID) xenon bulb rated at 85V and 35W, using a P32d-2 base. Unlike the H1, it requires an external ignitor to initiate and sustain the electrical arc that produces light.
The D2S is designed specifically for projector-type housings. This housing requirement is a critical fitment constraint, as the optics of a projector housing are engineered to work with the arc-discharge light source rather than a filament.
For the low beam position on the Jaguar X-Type (2002-2008), two distinct bulb types are specified depending on the headlamp system installed. Halogen Capsule Headlamp variants use the H1, while HID Headlamp variants use the D2S.
The H1 and D2S are not interchangeable. They differ in base type, operating voltage, light-generation technology, and housing compatibility, making substitution between the two types technically incompatible.
Both the H1 and D2S conform to ECE standards, which govern bulb construction, output, and base specifications across European and worldwide markets.
The high beam circuit on the X-Type uses only the H1 across all listed years, with no HID variant specified for that position, unlike the split-specification arrangement found in the low beam circuit.