Pontiac Phoenix License Plate Bulb Size

The Pontiac Phoenix license plate light requires a 194 bulb size for proper illumination of the rear registration area. Data for the specific component covers the range from 1977 to 1984.

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
1977-1984	194

Bulb Specifications

Description	Bulb Size
ANSI standard (US & Canada). Miniature wedge bulb (T10). 12V, 3.78W.	194

Other Locations

Additional Notes

The Pontiac Phoenix uses the 194 bulb for the license plate position across all listed model years, spanning 1977-1984.
The 194 is classified as a miniature wedge bulb, designated T10 in the tubular lamp sizing system, where "T10" refers to a tubular form factor measured in eighths of an inch.
The wedge base design means the 194 bulb has no metal pins or bayonet fittings. Instead, the glass envelope itself acts as the base, held in place by tension within the socket.
The 194 operates at 12 volts and draws 3.78 watts, placing it among the lower-wattage bulbs used in automotive applications, consistent with a non-illumination-critical position such as a license plate lamp.
The 194 carries ANSI standardization recognized in both the United States and Canada, meaning the specification conforms to a defined electrical and physical standard rather than a proprietary one.
The T10 wedge format is shared by several bulb variants, including the 168 and 2825. These are not direct substitutes for the 194, as they differ in wattage and electrical characteristics despite sharing the same base type.