The Husqvarna FE450 uses HS1 bulb size for both high beam and low beam headlight applications. The replacement chart covers vehicle production years spanning 2015 to 2021.
The year-by-year compatibility chart below provides a quick reference to verify the correct bulb size for your vehicle.
The Husqvarna FE450 uses the HS1 bulb type for both high beam and low beam headlight positions across the 2015-2021 model years.
The HS1 is a dual-filament halogen bulb, meaning a single bulb contains two separate filaments to serve both the high beam and low beam functions within one unit.
The HS1 operates at 12 volts with a 35W/35W output rating, where each wattage figure corresponds to one of the two filaments.
The HS1 uses a PX43t base, which is a specific bayonet-style fitting standard to motorcycle headlight applications and is not interchangeable with common automotive bulb bases such as H4 or H7.
The HS1 is built to the ECE (Economic Commission for Europe) standard, a regulatory framework recognized across Europe and numerous other markets worldwide.
Because both the high beam and low beam positions share the same HS1 specification on the FE450, a single bulb type serves the entire headlight assembly rather than requiring separate bulbs for each function.