Chevrolet Equinox Headlight Bulb Size

Additional Notes

• The 9005 bulb is the most frequently specified type across the Chevrolet Equinox headlight data, appearing as the high beam bulb for model years 2010-2015 and as one of the high beam options for 2016-2018. It follows the ANSI standard, carries a P20d base, and operates at 12V with a 65W output through a single filament.
• The D5S is an HID (xenon) discharge bulb governed by the ECE standard, rated at 12V and 25W with a PK32d-7 base. Its 25W draw is substantially lower than the halogen types listed alongside it, which reflects the higher luminous efficiency characteristic of high-intensity discharge technology rather than a reduced light output.
• The 9012 is a single-filament halogen bulb under the ANSI standard, fitted with a PX22d base and rated at 12V, 55W. In the Chevrolet Equinox (2018-2021), it serves as both the high beam and low beam bulb in halogen capsule headlamp configurations, making it one of the few bulb types in these specifications to cover both functions within the same housing.
• The 9007 is a dual-filament halogen bulb with a PX29t base, rated at 12V and 65W for the high beam filament and 55W for the low beam filament. Its dual-filament construction means a single bulb unit handles both beam functions, which is reflected in the 2005-2009 Equinox specifications where it appears identically under both the high beam and low beam categories.
• The H11 follows the ECE standard with a PGJ19-2 base and operates at 12V, 55W through a single filament. It is listed exclusively as a low beam bulb in the Equinox specifications, covering model years 2010-2018 in halogen configurations, while a separate bulb handles the high beam in those same years.
• From 2016 onward, the Chevrolet Equinox high beam and low beam positions each list two or more distinct bulb sizes depending on the headlamp system installed. The D5S applies to HID-equipped vehicles, while halogen variants use either the 9005, 9012, or H11 depending on the specific year and beam position. These are not interchangeable, as each type uses a different base configuration.
• The 9005 and 9012 share the same ANSI origin and voltage rating but differ in base type, with the 9005 using a P20d base and the 9012 using a PX22d base. This physical difference means the two bulbs are not cross-compatible despite their similar electrical ratings, and the 2018 high beam position lists both as separate fitment options tied to different trim configurations.
• The H11 carries ECE certification but is also approved for use in the United States, which accounts for its presence in ANSI-market vehicles such as the Equinox. Its PGJ19-2 base is specific to the H11 type and is not shared by any other bulb listed in these specifications.