The Husqvarna TE310 uses HS1 bulb size for both high beam and low beam headlight applications. The replacement chart covers 2010 to 2012 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 bulb is the sole bulb type specified across all headlight positions for the Husqvarna TE310, covering both high beam and low beam functions for the 2010-2012 model years.
The HS1 is a dual-filament halogen bulb, meaning a single unit contains separate filaments for both high and low beam operation within one housing.
The HS1 operates at 12 volts 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 specific bayonet-style fitting standard to motorcycle headlight applications and is not interchangeable with common automotive bulb bases such as H4.
The HS1 is governed by ECE (Economic Commission for Europe) standards, making it a globally recognized specification used across European and international markets.
Because the Husqvarna TE310 (2010-2012) uses the HS1 for both the high beam and low beam positions, both functions are served by the same bulb type, which is a characteristic design of many single-headlight motorcycle systems.