Lincoln Versailles Dome Light Bulb Size

The Lincoln Versailles dome light requires a 211-2 or 1003 bulb size depending on the specific application. Data for the bulb sizes covers the range from 1977 to 1980.

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
1978-1980	211-2
1977	1003

Bulb Specifications

Description	Bulb Size
ANSI standard (US & Canada). Festoon bulb, 41mm length, SV8.5 base. 12V, 12W.	211-2
ANSI standard (US & Canada). Single-filament bulb with BA15s bayonet base. 12V, 21W.	1003

Other Locations

Additional Notes

The Lincoln Versailles dome light uses two distinct bulb types across its production run, with the 211-2 and 1003 each serving specific model years.
The 211-2 is a festoon-style bulb measuring 41mm in length with an SV8.5 base, rated at 12 volts and 12 watts, and conforms to ANSI standards for the US and Canadian markets.
The 1003 is a single-filament bulb with a BA15s bayonet base, rated at 12 volts and 21 watts, and also conforms to ANSI standards for the US and Canadian markets.
The 1003 draws 21 watts compared to the 12 watts of the 211-2, meaning the two bulbs are not electrically equivalent and are not interchangeable without consideration of the socket and wiring.
The BA15s bayonet base of the 1003 and the SV8.5 festoon base of the 211-2 are physically incompatible mounting types, which prevents direct substitution between the two bulbs.
The Lincoln Versailles (1978-1980) uses the 211-2 bulb for the dome light across those three model years.
The 1977 Lincoln Versailles uses the 1003 bulb for the dome light, reflecting a different specification from the later model years.