The Piaggio BV 350 headlight bulb size specifications indicate H7 bulbs for both high beam and low beam applications. The replacement chart covers vehicle production years from 2012 to 2019.
The year-by-year compatibility chart below provides a quick reference to verify the correct bulb size for your vehicle.
The H7 is the sole bulb type specified across all headlight positions on the Piaggio BV 350, covering both high beam and low beam functions for model years 2012-2019.
The H7 is a single-filament halogen bulb, meaning each unit produces light through one tungsten filament enclosed in a halogen gas-filled quartz envelope. Because it carries only one filament, separate bulbs are required for high and low beam duties rather than a single dual-function unit.
H7 bulbs operate on a 12-volt electrical system and draw 55 watts, figures that reflect the standard automotive halogen rating established under ECE regulations.
The H7 uses a PX26d base, a two-pin bayonet-style connector. This base type is not interchangeable with other common halogen bases such as H4, H11, or H1, and substituting a bulb with a different base would require a socket adapter or wiring modification.
The H7 is an ECE-rated bulb, meaning it conforms to European and international lighting standards. It also carries approval for use in the United States and Japan, making it a globally accepted specification.
Because the Piaggio BV 350 uses the same H7 specification for both the high beam and low beam positions across all listed model years (2012-2019), a single bulb part number is applicable to either socket, which simplifies replacement sourcing.
Although H7 bulbs share a standardized base and wattage, physical housing tolerances can vary between manufacturers. A replacement bulb that does not seat correctly within the reflector housing may produce misaligned light output regardless of electrical compatibility.
Aftermarket H7 variants, including LED and HID retrofit units, are produced with the PX26d base to match the original socket. However, such replacements may require additional components such as driver modules or anti-flicker resistors to function correctly within the vehicle's electrical system.