Fiat 500X Daytime Running Light Bulb Size
The Fiat 500X daytime running light requires P21W or P21/5W bulb sizes depending on the specific version of the lighting component. Data for the bulb sizes covers the range from 2016 to 2020.
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 | P21W |
| 2016-2018 | P21/5W |
Bulb Specifications
| Description | Bulb Size |
|---|---|
| ECE standard (Europe & worldwide). Single-filament signalling bulb with BA15s bayonet base. 12V, 21W. | P21W |
| ECE standard (Europe & worldwide). Dual-filament signalling bulb with BAY15d bayonet base. 12V, 21W/5W. | P21/5W |