Pontiac Astre License Plate Bulb Size

The Pontiac Astre license plate light requires a 194 bulb size for proper illumination of the rear identification area. Data for the specified component covers the period from 1975 through 1977.

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
1975-1977	194

Bulb Specifications

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

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Additional Notes

The 194 bulb is the license plate bulb size for the Pontiac Astre across the 1975-1977 model years.
The 194 is classified as an ANSI-standard miniature wedge bulb, recognized under both US and Canadian standards.
The T10 designation refers to the bulb's wedge base form factor, which is retained directly in the socket without a separate metal base or pins.
The 194 bulb operates at 12 volts with a power draw of 3.78 watts, consistent with low-current automotive lighting applications such as license plate illumination.
The wedge base design of the 194 means fitment depends on socket compatibility with the T10 form factor, and substitutions using different base types would not be interchangeable without modification.