Chevrolet Biscayne Map Light Bulb Size

The Chevrolet Biscayne map light requires a 562 bulb size for proper installation and function within the interior lighting system. Data for the specified component covers the period from 1962 through 1970.

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
1962-1970	562

Bulb Specifications

Description	Bulb Size
ANSI standard (US & Canada). Festoon bulb, 44mm length, end-cap contacts. 12V, 12W.	562

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Additional Notes

The Chevrolet Biscayne uses the 562 bulb for the map light position across all listed model years, spanning 1962-1970.
The 562 is an ANSI-standardized bulb recognized in both the United States and Canada, meaning it conforms to a defined set of electrical and physical standards shared across North American markets.
The 562 is a festoon-type bulb, a form factor characterized by a cylindrical tube with metal end-cap contacts at each end rather than a base socket, allowing it to bridge two spring-loaded contact points within the fixture.
The 562 bulb has a length of 44mm, which is a critical fitment factor, as festoon bulbs must physically span the contact points of the housing to make a proper electrical connection.
The 562 operates at 12 volts and 12 watts, values consistent with standard automotive electrical systems of that era.
Because the 562 shares the festoon form factor with several other bulb types, substitution requires matching both the 44mm length and the 12V/12W rating to maintain correct fitment and electrical compatibility in the Biscayne map light housing.