Land Rover Discovery Map Light Bulb Size

The Land Rover Discovery map light utilizes a 6461 bulb size for the interior lighting system. Available data for the specified component covers the period from 1994 to 2004.

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
1994-2004	6461

Bulb Specifications

Description	Bulb Size
ANSI standard (US & Canada). Festoon bulb, 36mm length, SV8.5 base. 12V, 5W.	6461

Other Locations

Additional Notes

The Land Rover Discovery uses the 6461 bulb for the map light across the 1994-2004 model years.
The 6461 is classified as a festoon bulb, meaning it is cylindrical in shape and makes contact at both ends rather than through a screw or pin base.
The 6461 bulb has an SV8.5 base, which refers to the 8.5mm cap width at each end of the festoon housing.
The 6461 bulb has a physical length of 36mm, which is the span required to bridge the two contact points within the festoon socket.
The 6461 operates at 12 volts and 5 watts, placing it in the low-wattage range typical of interior courtesy and reading applications.
The 6461 designation follows the ANSI standard, meaning it is a recognized specification in both the United States and Canada.
When replacing the map light bulb in the Land Rover Discovery, the 36mm length of the 6461 is a critical fitment factor, as festoon bulbs of differing lengths will not seat correctly in the socket even if the base type matches.