Yamaha YXC700 Viking VI EPS high beam and low beam headlight bulbs both use HS1 size. The replacement chart covers 2020-2021 vehicle production years with 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 for the Yamaha YXC700 Viking VI EPS across both the 2020-2021 model years, serving both the high beam and low beam headlight positions.
The HS1 is a dual-filament halogen bulb, meaning a single bulb unit contains separate filaments for high and low beam functions rather than requiring two discrete bulbs per headlight assembly.
The HS1 operates on a 12-volt electrical system and carries a 35W/35W power rating, where each wattage figure corresponds to one of the two filaments.
The HS1 uses a PX43t base, which is a bayonet-style mount with a specific pin configuration. This base type is not universally shared with other common automotive or powersports bulb standards, making direct substitution with non-HS1 bulbs inadvisable without confirming physical and electrical compatibility.
The HS1 is classified under ECE regulations, a lighting standard recognized across Europe and numerous other markets worldwide. This designation governs the bulb's output and construction rather than being a purely regional sales restriction.
The HS1 standard originated for motorcycle applications, and its fitment in the YXC700 Viking VI EPS reflects a design choice consistent with the vehicle's powersports classification rather than passenger car lighting conventions.