The Husqvarna TE449 uses HS1 bulb size for both high beam and low beam headlight applications. The replacement chart covers 2012 to 2013 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 HS1 is the sole bulb type specified across all listed positions and years for the Husqvarna TE449, appearing in both the high beam and low beam headlight sockets for the 2012-2013 model years.
The HS1 is a dual-filament halogen bulb, meaning a single unit contains separate filaments for two distinct light output levels within one housing.
The HS1 operates on a 12-volt electrical system and carries a 35W/35W power rating, with each wattage figure corresponding to one of the two filaments.
The HS1 uses a PX43t base, which is a bayonet-style motorcycle-specific mount. This base type is not interchangeable with common automotive bulb bases such as H4, despite the H4 also being a dual-filament halogen unit.
The HS1 is governed by ECE (Economic Commission for Europe) standards, a regulatory framework recognized across Europe and numerous other markets worldwide.
Because the high beam and low beam sockets on the Husqvarna TE449 share the same HS1 specification for 2012-2013, a single bulb type serves both functions through its dual-filament design rather than requiring separate bulbs for each beam.