Chevrolet Camaro Trunk Bulb Size

Additional Notes

• The 561 and 562 bulbs are both festoon-type bulbs with a 44mm length and end-cap contacts, rated at 12V and 12W. Despite their near-identical physical and electrical specifications, they carry distinct ANSI designations and are not listed interchangeably across Chevrolet Camaro model years.
• The 561 bulb is the most frequently specified trunk bulb across Chevrolet Camaro history, covering the 1982-1989 and 1998-2002 model years.
• The 12961 is a Philips-branded part number rather than an ANSI standard designation. It describes a T10 miniature wedge bulb with a W2.1x9.5d base, rated at 12V and 5W, and is specified for the Chevrolet Camaro (2010-2013 and 2016-2020).
• Both the 194 and 168 bulbs are T10 miniature wedge types operating at 12V, but they differ in wattage. The 168 is rated at 4.9W while the 194 draws 3.78W, making them electrically distinct despite sharing the same base form factor.
• The 1003 bulb uses a BA15s single-contact bayonet base and is rated at 12V and 21W, making it the highest-wattage trunk bulb specified across all Camaro model years in these records. It is listed for the 1967-1981 model years.
• The 194 bulb, specified for the 2021-2024 Camaro, operates at the lowest wattage of any trunk bulb in these specifications at 3.78W, reflecting a shift toward lower power consumption in later model years.
• The T10 wedge base is shared by three distinct bulb designations in these specifications: the 194, the 168, and the 12961. Although physically similar, their differing wattage ratings mean substitution between them may not be appropriate without confirming socket and circuit compatibility.
• The BA15s bayonet base of the 1003 bulb is mechanically incompatible with the wedge and festoon bases used in all other Camaro trunk bulb specifications, meaning no cross-substitution is possible without a socket adapter.
• Festoon bulbs such as the 561 and 562 make contact through metal end caps at each end of the bulb rather than through a base socket, which is a different retention and contact method from both the wedge and bayonet types also found in these specifications.
• The 1990-1993 Camaro is specified with the 168 bulb, which sits between the earlier festoon-based 561 and the later festoon-based 562 in the chronological record, indicating the trunk lighting used three different bulb types across that broader era.