Kia Soul Daytime Running Light Bulb Size

The Kia Soul daytime running light bulb uses a P21/5W size for this component. The replacement chart covers vehicle production years spanning 2020 to 2024.

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

Bulb Size by Year Range

Years	Bulb Size
2020-2024	P21/5W

Bulb Specifications

Description	Bulb Size
ECE standard (Europe & worldwide). Dual-filament signalling bulb with BAY15d bayonet base. 12V, 21W/5W.	P21/5W

Other Locations

Additional Notes

The P21/5W is the specified daytime running light bulb for the Kia Soul across the 2020-2024 model years.
The P21/5W is a dual-filament bulb, meaning it contains two separate filaments within a single glass envelope, each rated at a different wattage.
The two filaments operate at 21 watts and 5 watts respectively, allowing the bulb to serve different lighting functions at different intensities from a single unit.
The bulb operates on a 12-volt electrical system, which is standard in passenger vehicles.
The P21/5W uses a BAY15d bayonet base, which is an offset twin-pin mount. The two pins are positioned at different heights to ensure the bulb can only be inserted in one orientation, preventing incorrect filament assignment.
The P21/5W is governed by ECE (Economic Commission for Europe) standards, indicating it is a regulation-compliant type used across European and international markets.
Because the BAY15d base is offset, it is not interchangeable with the BAY15s base found on single-filament bulbs such as the P21W, despite the physical similarity of the bayonet housing.