The Ducati Monster 1200 headlight bulb specifications include an H1 size for high beam and an H7 size for low beam applications. Replacement bulb chart data covers 2014 through 2020 production years with corresponding size information.
The year-by-year compatibility chart below provides a quick reference to verify the correct bulb size for your vehicle.
The H1 bulb is a single-filament halogen type operating on a two-pin base, used exclusively for the high beam function in the Ducati Monster 1200 across the 2017-2020 model years.
The H7 bulb is also a single-filament halogen type but uses a different two-pin PX26d base, and it serves the low beam function in the Monster 1200 for the same 2017-2020 period.
Because the 2017-2020 Monster 1200 uses separate H1 and H7 bulbs for high and low beam respectively, the two positions are not interchangeable with each other despite both being single-filament halogen types.
The 9003 bulb is a dual-filament halogen type that handles both high and low beam functions within a single housing, and the Monster 1200 relied on this configuration for the 2014-2016 model years.
The 9003 standard is electrically and physically equivalent to the H4 designation used in many international markets, meaning bulbs sold under either designation are generally cross-compatible.
The shift from a single 9003 dual-filament bulb to separate H1 and H7 single-filament bulbs between the 2016 and 2017 Monster 1200 indicates a change in headlight housing design, and bulbs from the earlier configuration are not compatible with the later one.
All three bulb types present in these specifications, H1, H7, and 9003, operate at 12 volts and are standard halogen replacements widely available across automotive and powersports supply channels.