Kia Forte5 Fog Light Bulb Size

The Kia Forte5 fog light requires bulb size H8 or H11B depending on the specific version of the vehicle. Data for the lighting components covers the range from 2014 to 2016.

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
2016-2018	H8
2015	H11B
2015	H8
2014	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
ECE standard (Europe & worldwide). Single-filament halogen bulb with asymmetric PGJY19-2 base. Also approved in the US. 12V, 55W.	H11B

Other Locations

Additional Notes

The H8 bulb is a single-filament halogen type operating at 12V and 35W, built to the ECE standard used in Europe and worldwide, with approval also extended to the US market. It uses a PGJ19-1 base.
The H11B bulb is also a single-filament halogen type rated at 12V but draws 55W, making it a higher-wattage option than the H8. It follows the same ECE standard and carries US approval as well.
The H11B uses an asymmetric PGJY19-2 base, which differs from the PGJ19-1 base of the H8. This asymmetry is a deliberate design feature that prevents incorrect installation by ensuring the bulb can only be seated in one orientation.
The Kia Forte5 front fog light takes the H8 bulb across the 2014-2018 model years.
The 2015 Forte5 front fog light lists both the H8 and the H11B as specified sizes, indicating that two different configurations existed within that model year.
Because the H8 and H11B use physically different bases, PGJ19-1 versus PGJY19-2, the two bulbs are not interchangeable despite sharing the same general halogen single-filament construction.
The wattage difference between the H8 at 35W and the H11B at 55W means the two bulbs place different electrical loads on the vehicle's fog light circuit, which is relevant to socket and wiring compatibility.