The Piaggio MP3 250 uses H1 bulb size for both high beam and low beam headlight applications. The replacement chart covers vehicle production spanning 2007 to 2014.
The year-by-year compatibility chart below provides a quick reference to verify the correct bulb size for your vehicle.
The Piaggio MP3 250 uses the H1 bulb type for both its high beam and low beam headlights across the 2007-2014 model years.
The H1 is a single-filament halogen bulb, meaning one filament handles one lighting function, which is why separate H1 bulbs are required for the high beam and low beam positions rather than a single dual-function unit.
H1 bulbs operate at 12 volts and 55 watts, which are standard ratings for halogen headlight applications in this voltage class.
The H1 bulb uses a P14.5s base, a single-pin base type where the pin position is fixed, allowing the bulb to seat in only one orientation within the housing.
The H1 specification follows the ECE standard, which governs lighting equipment across Europe and many other markets worldwide, and the bulb type also carries approval for use in the United States and Japan.
Because the Piaggio MP3 250 uses H1 for both beam positions, the two sockets are not interchangeable in function despite accepting the same bulb type physically, as each socket is wired to a distinct circuit.