Chevrolet Chevy II Map Light Bulb Size

Additional Notes

• The Chevrolet Chevy II uses the 562 bulb for the map light across all listed model years, spanning 1962-1968.
• The 562 is an ANSI-standardized bulb recognized across the United States and Canada, meaning it conforms to a defined set of electrical and physical specifications shared by compliant manufacturers.
• It is a festoon-type bulb, a cylindrical form factor that seats between two spring-clip contacts at each end rather than fitting into a socket base.
• 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.
• Electrical contacts on the 562 are end-cap style, meaning metal caps at both ends of the bulb body serve as the conductive terminals.
• The 562 operates at 12 volts, consistent with the 12V electrical systems standard in automotive applications of this era.
• At 12 watts, the 562 draws a relatively modest current load, a characteristic typical of interior courtesy and reading light applications.
• Because festoon bulbs are sized by length, substituting a festoon bulb of a different length in the Chevy II map light housing would result in either a loose fit or an inability to seat the bulb between the contacts.