Volvo C40 Recharge Tail Light Bulb Size

The Volvo C40 Recharge tail light utilizes a specific H21W bulb size for illumination across all listed vehicle versions. Data for the specified lighting component covers the range from 2022 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
2022-2024	H21W

Bulb Specifications

Description	Bulb Size
ECE standard (Europe & worldwide). Single-filament signalling bulb with BAY9s base. 12V, 21W.	H21W

Additional Notes

The H21W is the tail light bulb used across all documented model years of the Volvo C40 Recharge, covering the 2022-2024 range.
The H21W is a single-filament bulb, meaning it serves one lighting function rather than combining two functions such as tail and brake light within a single unit.
The H21W operates at 12 volts and draws 21 watts, which is a standard power rating for automotive signalling applications.
The H21W uses a BAY9s base, a bayonet-style fitting with offset pins that prevent incorrect installation of incompatible bulbs.
The H21W is governed by ECE regulations, a standard recognized across Europe and many other markets worldwide, distinguishing it from SAE-governed bulbs used primarily in North America.
The BAY9s base is not interchangeable with more common bayonet bases such as BA15s or BAY15d, so substitution with visually similar bulbs risks an improper fit.