Buick Encore Fog Light Bulb Size

The Buick Encore fog light requires a specific H8 bulb size for proper installation and operation within the front lighting assembly. Data for the bulb size covers the period from 2020 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
2017-2020	H8
2013-2016	H11

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
ECE standard (Europe & worldwide). Single-filament halogen bulb with PGJ19-2 base. Also approved in the US. 12V, 55W.	H11

Other Locations

Additional Notes

The Buick Encore front fog light specifications cover two distinct bulb types across the 2013-2020 model years: the H8 and the H11, both halogen single-filament designs operating on a 12-volt system.
The H8 bulb is rated at 35 watts and uses a PGJ19-1 base. It follows the ECE standard, which governs lighting equipment across Europe and much of the world, and carries approval for use in the United States as well.
The H11 bulb is rated at 55 watts and uses a PGJ19-2 base. Like the H8, it conforms to the ECE standard and is also approved in the United States.
The Buick Encore (2017-2020) front fog lights require the H8 bulb, while the 2013-2016 model years require the H11.
Although the H8 and H11 share a similar physical profile and both belong to the PGJ19 base family, their base subtypes differ: PGJ19-1 for the H8 and PGJ19-2 for the H11. These two bases are not interchangeable.
The wattage difference between the two bulb types is notable. The H11 at 55 watts draws significantly more power than the H8 at 35 watts, meaning the two are electrically incompatible as substitutes for one another regardless of any physical resemblance.