Ferrari 488 GTB License Plate Bulb Size

The Ferrari 488 GTB utilizes a license plate component requiring a 12961 bulb size for proper illumination. Data for the specified lighting equipment covers the range from 2016 to 2019.

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
2016-2019	12961

Bulb Specifications

Description	Bulb Size
Philips part number. Miniature wedge bulb (T10) with W2.1x9.5d base. 12V, 5W.	12961

Other Locations

Additional Notes

The Ferrari 488 GTB uses the 12961 bulb for its license plate lighting across the 2016-2019 model years.
The 12961 is a Philips part number designating a miniature wedge bulb in the T10 form factor, which is one of the most widely used bulb types in automotive auxiliary lighting applications.
The T10 designation refers to the bulb's tubular shape, with the number indicating its width in tenths of an inch, making it a compact light source suited to low-profile housings such as license plate assemblies.
The base type on this bulb is W2.1x9.5d, a wedge-style base that relies on tension from the socket rather than a bayonet or screw mechanism to maintain contact, which is a common trait among small auxiliary automotive bulbs.
The bulb operates at 12 volts and 5 watts, consistent with standard low-current auxiliary circuits found in passenger vehicles.
The T10 form factor is shared by a broad range of bulbs across many manufacturers, though fitment in a specific housing depends on both the base type and the physical size of the bulb body, meaning not all T10-type bulbs are interchangeable despite sharing the same base designation.
The W2.1x9.5d base specification is a precise standard, and substituting a bulb with a physically similar but dimensionally different base risks poor electrical contact or failure to seat correctly in the Ferrari 488 GTB license plate socket.