Volvo S80 Map Light Bulb Size

The Volvo S80 map light requires bulb sizes 6411 and 12961 depending on the specific version of the lighting component. Available data covers the range from 1999 to 2006.

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
2005-2006	6411
1999-2004	12961

Bulb Specifications

Description	Bulb Size
ANSI standard (US & Canada). Festoon bulb, 36mm length, SV8.5 base. 12V, 5W.	6411
Philips part number. Miniature wedge bulb (T10) with W2.1x9.5d base. 12V, 5W.	12961

Other Locations

Additional Notes

The Volvo S80 map light specifications reference two distinct bulb types across the 1999-2006 model years: the 6411 and the 12961.
The 6411 is an ANSI-standardized festoon bulb rated at 12V and 5W, with a 36mm length and an SV8.5 base, commonly used in interior courtesy and map lighting applications across North American markets.
The 12961 is a Philips part number designation for a T10 miniature wedge bulb with a W2.1x9.5d base, also rated at 12V and 5W. The T10 wedge format is among the most widely used bulb types in automotive interior lighting.
Despite sharing the same voltage and wattage ratings, the 6411 and 12961 use fundamentally different base types. The SV8.5 festoon base and the W2.1x9.5d wedge base are physically incompatible, meaning the two bulbs are not interchangeable.
The Volvo S80 (1999-2003) uses the 12961 wedge bulb for the map light position.
The 2004-2005 S80 also specifies the 12961, continuing the same fitment as earlier model years.
The 2005-2006 S80 transitions to the 6411 festoon bulb, representing a change in the map light socket type relative to earlier production years.
Because the 6411 is an ANSI-standardized designation, it is sourced from multiple manufacturers, whereas the 12961 is identified by a Philips-specific part number, though equivalent T10 wedge bulbs from other manufacturers with the W2.1x9.5d base are generally considered compatible.