Audi RS3 Dome Light Bulb Size

The Audi RS3 dome light requires a bulb size of 12961 for the interior lighting system. Data for the specified component covers the range from 2017 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	12961
2017-2020	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 12961 is a Philips part number designating a T10 miniature wedge bulb with a W2.1x9.5d base, rated at 12 volts and 5 watts.
The W2.1x9.5d base is a wedge-type fitting, meaning the bulb is held in place by tension from the socket rather than by a bayonet or screw mechanism.
The Audi RS3 uses the 12961 bulb for the dome light across the 2017-2020 and 2023-2024 model years.
At 5 watts, the 12961 operates at a low wattage typical of interior courtesy lighting, where heat output and power draw are kept minimal.
The T10 designation refers to the bulb's tubular form factor, measured in eighths of an inch, placing it among the smaller bulb sizes used in automotive interior applications.
The W2.1x9.5d base is standardized under IEC and UNECE specifications, which means the 12961 is interchangeable with other T10 wedge bulbs sharing that base type, provided voltage and wattage ratings are compatible with the socket.