Vespa S 50 4V Tail Light Bulb Size
The Vespa S 50 4V tail light requires a P21/5W bulb size for proper illumination. Replacement specifications covered in the chart span from 2010 to 2014 model years.
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 |
|---|---|
| 2010-2014 | P21/5W |
Bulb Specifications
| Description | Bulb Size |
|---|---|
| ECE standard (Europe & worldwide). Dual-filament signalling bulb with BAY15d bayonet base. 12V, 21W/5W. | P21/5W |