The Hyosung MS3-250 headlight bulb uses an H7 size for both high beam and low beam applications. The replacement chart covers 2008 to 2009 model 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 H7 is a single-filament halogen bulb operating at 12 volts and 55 watts, fitted with a PX26d base. The single-filament design means one bulb serves one lighting function, which is why the Hyosung MS3-250 uses separate H7 units for both the high beam and low beam circuits.
The H7 bulb follows the ECE standard, a regulatory framework recognized across Europe and much of the world. It also carries approval in the United States and Japan, giving it broad international acceptance across major automotive markets.
Both the high beam and low beam headlight positions on the Hyosung MS3-250 use the H7 bulb for the 2008-2009 model years. While the same bulb type fills both positions, the two circuits remain electrically separate and are not interchangeable in function.
The PX26d base is a bayonet-style fitting specific to H7 bulbs. It is not compatible with other common halogen bases such as the P43t used by H4 bulbs, meaning substitution with physically similar bulb types is not supported by the fitment data for this vehicle.