The Ducati 996 SPS headlight bulb specifications include an H1 size for high beam and H3 size for low beam applications. The replacement chart covers 1999 to 2000 production years with corresponding bulb size data.
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 at 55 watts, housed in a P14.5s base configuration. It produces a focused, narrow beam pattern, which suits high beam applications where maximum forward projection is the primary function.
The H3 bulb is also a single-filament halogen type rated at 55 watts, but it uses a PK22s base, which differs from the P14.5s base of the H1. These two bulb types are not interchangeable despite sharing the same wattage rating.
The Ducati 996 SPS uses the H1 bulb for the high beam headlight across the 1999-2000 model years.
The low beam headlight on the 996 SPS uses the H3 bulb across the same 1999-2000 model years.
Because the high beam and low beam positions use different bulb types, H1 and H3 respectively, each socket accepts only its designated bulb. Attempting to fit an H1 into an H3 socket or vice versa is not possible due to the differing base designs.