The Suzuki Motorcycle LT-A500 KingQuad AXi uses HS1 bulb size for both high beam and low beam headlight applications. The replacement chart covers 2009 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 HS1 bulb type is specified for both the high beam and low beam headlight positions across all listed model years of the Suzuki Motorcycle LT-A500 KingQuad AXi, spanning 2009 and 2011-2019.
The HS1 is a dual-filament halogen bulb, meaning a single unit contains separate filaments for both high and low beam output, operating at 12 volts with a 35W/35W power rating across both filaments.
The HS1 bulb uses a PX43t base, which is a bayonet-style mount with a specific pin configuration designed for motorcycle headlight housings and is not interchangeable with other common automotive base types such as H4 or H7.
The HS1 standard falls under ECE (Economic Commission for Europe) regulation, making it a globally recognized specification used across European and international markets rather than a North American SAE-governed type.
Because both the high beam and low beam positions share the same HS1 specification on the LT-A500 KingQuad AXi, a single bulb type serves the entire headlight assembly rather than requiring separate bulbs for each function.
The 35W/35W rating of the HS1 reflects a relatively modest power draw compared to automotive halogen bulbs such as the H4, which typically operates at 60W/55W, a distinction relevant when evaluating output expectations or replacement options.
The PX43t base of the HS1 is physically distinct from the P43t base found on H4 bulbs; despite a similar appearance, these two types are not cross-compatible due to differences in pin positioning.