Chevrolet Equinox Fog Light Bulb Size

Additional Notes

• The Chevrolet Equinox front fog light uses two distinct bulb types across its model years: the H11 from 2005-2015 and the H8 from 2016-2021.
• The H8 bulb operates at 12 volts and 35 watts, making it a lower-wattage halogen unit compared to the H11, which runs at 12 volts and 55 watts.
• Both the H8 and H11 are single-filament halogen bulbs, meaning each bulb controls only one lighting function rather than switching between two beam modes.
• The H8 uses a PGJ19-1 base, while the H11 uses a PGJ19-2 base. These two base types are physically distinct and are not interchangeable with each other.
• The Chevrolet Equinox (2016-2021) requires the H8 bulb specifically. Installing an H11 in its place is not a direct fit due to the differing base configurations.
• Both bulb types conform to ECE standards, which govern lighting equipment across Europe and many other markets worldwide, and both carry approval for use in the United States as well.
• The 20-watt difference between the H8 and H11 reflects a meaningful gap in power draw, with the H11 consuming more energy per hour of operation.
• The shared PGJ19 base family between the H8 and H11 indicates a close physical relationship, but the differing suffix numbers (PGJ19-1 versus PGJ19-2) denote a key structural variation that prevents cross-fitting.