The KYMCO MXU 375 LE headlight bulb uses an HS1 size for both high beam and low beam functions. The replacement chart covers 2010 to 2011 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 is the sole bulb type across all listed positions and model years for the KYMCO MXU 375 LE, covering both high beam and low beam headlight functions for 2010-2011.
The HS1 is a dual-filament halogen bulb, meaning a single physical unit contains two separate filaments: one dedicated to high beam output and one to low beam output.
The HS1 operates at 12 volts and carries a 35W/35W power rating, where each value corresponds to one of the two filaments, both drawing equal wattage.
The HS1 uses a PX43t base, a bayonet-style fitting with a specific pin configuration designed for motorcycle headlight housings. This base type is not interchangeable with common automotive bulb bases such as H4, despite the H4 also being a dual-filament halogen type.
The HS1 is governed by ECE (Economic Commission for Europe) standards, a regulatory framework recognized across Europe and numerous other markets worldwide, which defines the bulb's photometric and dimensional requirements.
Because the high beam and low beam positions share the same HS1 specification on the MXU 375 LE, a single replacement bulb type serves both optical functions, though the housing and wiring harness still address each filament independently.