The Yamaha YW50F Zuma 50F headlight bulb uses an HS1 size for both high and low beam functions. The replacement chart covers 2012 through 2019 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 Yamaha YW50F Zuma 50F uses the HS1 bulb type for both the high beam and low beam headlight positions across the 2012-2019 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 power rating, where each wattage figure corresponds to one of the two filaments.
The HS1 bulb uses a PX43t base, which is a specific bayonet-style fitting standard for motorcycle headlight applications and is not interchangeable with common automotive base types such as H4 or H7.
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 same HS1 bulb type covers both beam positions on the Zuma 50F, a single replacement bulb addresses the entire headlight assembly rather than requiring separate part numbers for each beam function.