Cadillac Allante Dome Light Bulb Size

The Cadillac Allante dome light requires a bulb size of 906 for proper installation and function within the interior lighting housing. Data for the specified component covers the range from 1990 to 1993.

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
1990-1993	906

Bulb Specifications

Description	Bulb Size
ANSI standard (US & Canada). Miniature wedge bulb (T10). 12V, 8W.	906

Other Locations

Additional Notes

The 1990-1993 Cadillac Allante uses a 906 bulb for the dome light across all four model years covered by these specifications.
The 906 is an ANSI-standardized bulb type, meaning its physical and electrical characteristics conform to a defined North American standard recognized in both the United States and Canada.
The 906 bulb belongs to the T10 miniature wedge family, a form factor in which the base of the bulb itself acts as the connector by wedging directly into the socket without a separate metal base or pins.
The 906 operates at 12 volts and consumes 8 watts, which is consistent with standard low-current interior lighting applications in automotive electrical systems of that era.
Because the 906 shares the T10 wedge base with several other bulb types, substitution requires verifying that voltage and wattage ratings match, as physically compatible bulbs are not always electrically interchangeable.