Mini Cooper Countryman Glove Box Bulb Size

The Mini Cooper Countryman glove box utilizes 12961 and DE3423 bulb sizes for the interior lighting components. Provided data covers the specific time range from 2011 through 2023.

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 Type	Shop
2017-2023	12961	Check Price
2011-2016	DE3423	Check Price

Bulb Specifications

Description	Type	Shop
Philips part number. Miniature wedge bulb (T10) with W2.1x9.5d base. 12V, 5W.	12961	Check Price
ANSI standard (US & Canada). Festoon bulb, 41mm length, end-cap contacts. 12V.	DE3423	Check Price

Other Locations

Additional Notes

The Mini Cooper Countryman glove box uses two distinct bulb types across its model years: the 12961 for 2017-2023 and the DE3423 for 2011-2016.
The 12961 is a Philips part number designating a T10 miniature wedge bulb with a W2.1x9.5d base, rated at 12V and 5W.
The W2.1x9.5d base is a wedge-style connector, meaning the bulb is held in place by tension from the socket rather than by a bayonet or screw mechanism.
The DE3423 is an ANSI-standard festoon bulb recognized across the US and Canadian markets, measuring 41mm in length with end-cap contacts at both terminals.
Festoon bulbs make electrical contact through metal caps at each end, which press against spring-loaded clips inside the socket, a design fundamentally different from the wedge base used by the 12961.
The two bulb types are not interchangeable, as the wedge base of the 12961 and the end-cap contact design of the DE3423 require physically different socket configurations.
Both bulb types operate on a 12V electrical system, consistent with standard automotive low-voltage circuits.
The wattage rating of 5W listed for the 12961 reflects a low-output specification typical of interior illumination applications such as glove box lighting.