Jaguar XJR Headlight Bulb Size

Additional Notes

• The H7 bulb is the most frequently specified type across the Jaguar XJR headlight data, appearing in both high beam and low beam positions across the 1998-2009 model years. It is a single-filament halogen bulb rated at 12V and 55W, built to the ECE standard used in Europe and worldwide, and also approved for use in the United States and Japan. Its base type is PX26d.
• The 9005 and 9006 bulbs cover the 1995-1997 model years for high beam and low beam positions respectively. Both are ANSI-standard single-filament halogen bulbs rated at 12V and built for the North American market. The 9005 carries a 65W rating with a P20d base, while the 9006 is rated at 55W with a P22d base. These two types are not interchangeable with each other or with H7 bulbs due to differing base configurations.
• The D2S and D3S are both HID xenon discharge bulbs specified for projector-type housings, but they differ in a critical way. The D2S requires a separate external ignitor and operates at 85V, 35W with a P32d-2 base. The D3S integrates the ignitor directly into the bulb body, operates at 42V, 35W, and uses a PK32d-5 base. These differences make the two types electrically and physically incompatible with each other.
• The D3S is a mercury-free formulation, which distinguishes it from earlier HID types such as the D2S. This characteristic reflects compliance with environmental regulations that restrict mercury content in lighting products.
• For the Jaguar XJR in the 2004-2008 model years, the low beam position has two distinct fitment paths depending on the headlamp system installed. Vehicles equipped with halogen capsule headlamps use the H7 bulb, while those fitted with HID headlamps use the D2S. Substituting one type for the other is not supported by the specifications, as each corresponds to a fundamentally different headlamp assembly.
• The 2014-2015 Jaguar XJR specifies the D3S for both the high beam and low beam positions, making it the only configuration in this dataset where a single bulb type serves both functions within the same headlamp system.
• The transition from ANSI-standard bulbs (9005 and 9006) to ECE-standard bulbs (H7) occurred between the 1997 and 1998 model years across both the high beam and low beam positions. The base types involved in this change are entirely different, meaning no cross-compatibility exists between the outgoing and incoming bulb types.
• The high beam position for the 2009 model year retains the H7 halogen bulb, while the low beam position for the same year uses the D2S HID bulb. This split-type configuration, where halogen and HID bulbs coexist within the same vehicle's headlamp system, requires that each position be serviced with its own distinct bulb type.