Jaguar F-Type Back Up Light Bulb Size

The Jaguar F-Type back up light requires a bulb size of P21W for the specified lighting component. Data for the bulb specifications covers the range from 2018 to 2024.

The year-by-year compatibility chart below provides a quick reference to verify the correct bulb size for your vehicle.

Bulb Size by Year Range

Years	Bulb Size
2023-2024	P21W
2018	P21W

Bulb Specifications

Description	Bulb Size
ECE standard (Europe & worldwide). Single-filament signalling bulb with BA15s bayonet base. 12V, 21W.	P21W

Other Locations

Additional Notes

The P21W is the back up light bulb used across all listed model years of the Jaguar F-Type, spanning 2018 and 2023-2024.
The P21W follows the ECE (Economic Commission for Europe) standard, a regulatory framework governing automotive lighting across Europe and numerous other markets worldwide.
This bulb operates on a 12-volt electrical system at 21 watts, which is the conventional power rating for single-filament signalling applications in passenger vehicles.
The P21W uses a BA15s bayonet base, where "BA" denotes a bayonet cap fitting, "15" refers to the 15mm base width, and the lowercase "s" indicates a single contact at the base, distinguishing it from dual-contact variants.
Because the BA15s base is a single-contact design, it is not interchangeable with the BA15d (dual-contact) base, despite the two sharing the same 15mm base width.