The Moto Guzzi Breva 1100 uses an H9 bulb size for high beam headlight operation and an H7 bulb size for low beam headlight operation. The replacement chart covers 2006 to 2008 production years with corresponding bulb size specifications.
The year-by-year compatibility chart below provides a quick reference to verify the correct bulb size for your vehicle.
The Moto Guzzi Breva 1100 uses two distinct halogen bulb types across its headlight system: the H9 for high beam and the H7 for low beam. This split-function arrangement was consistent across the 2006-2008 model years.
The H9 is a single-filament halogen bulb operating at 12V and 65W, fitted with a PGJ19-5 base. It conforms to ECE standards, giving it approval for use in Europe, worldwide markets, and the United States.
The H7 is a single-filament halogen bulb operating at 12V and 55W, fitted with a PX26d base. Its ECE certification extends to approval in the US and Japan, reflecting a broader range of accepted markets than the H9.
Because the H9 and H7 use different base types, PGJ19-5 and PX26d respectively, the two bulbs are not interchangeable with each other despite sharing the same 12V operating voltage.
The 10W difference between the H9 (65W) and H7 (55W) reflects the higher power demand of the dedicated high beam function compared to the low beam.
Single-filament construction in both bulb types means each bulb serves only one lighting function, which is why the Breva 1100 requires separate bulbs for high and low beam operation rather than a dual-filament alternative.