Honda Motorcycle NPS50S Ruckus headlight bulbs utilize HS1 bulb size for both high beam and low beam functions. The replacement chart covers 2004 through 2009 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 Honda Motorcycle NPS50S Ruckus uses the HS1 bulb type for both high beam and low beam headlight positions across the 2004-2009 model years.
The HS1 is a dual-filament halogen bulb, meaning a single bulb unit contains separate filaments for both the high beam and low beam functions rather than requiring two individual bulbs.
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 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, 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 NPS50S Ruckus, a single replacement bulb type serves both functions within the headlight assembly.