Buick Regal Sportback Fog Light Bulb Size

The Buick Regal Sportback fog light utilizes an H8 bulb size for the specific lighting component located on the front exterior of the vehicle. Data for the specified bulb covers the period from 2018 through 2020.

The year-by-year compatibility chart below provides a quick reference to verify the correct bulb size for your vehicle.

Front Fog Light

Years	Bulb Size
2020	H8
2020	H8 (Lamp Front Fog,Ece)
2018-2019	H8

Bulb Specifications

Description	Bulb Size
ECE standard (Europe & worldwide). Single-filament halogen bulb with PGJ19-1 base. Also approved in the US. 12V, 35W.	H8

Other Locations

Additional Notes

The H8 is a single-filament halogen bulb operating at 12 volts and 35 watts, fitted with a PGJ19-1 base. It is manufactured to ECE standards, a regulatory framework used across Europe and numerous other markets, though it also carries approval for use in the United States.
The Buick Regal Sportback uses the H8 bulb for its front fog light position across the 2018-2020 model years.
One 2020 entry carries the designation "Lamp Front Fog, ECE," indicating that a specific variant of the front fog light assembly on that model year is built to ECE regulatory requirements rather than SAE standards.
The PGJ19-1 base is a keyed, single-pin connector type specific to the H8 bulb. It is not interchangeable with the physically similar PGJ19-2 base found on the H11, or the PGJ19-3 base found on the H9 and H11B, despite those bulbs sharing a comparable body shape.