The Vespa ET2 headlight bulb uses a 6235B size for both high beam and low beam functions. The replacement chart covers vehicle production years spanning 2001 to 2005.
The year-by-year compatibility chart below provides a quick reference to verify the correct bulb size for your vehicle.
The Vespa ET2 uses the 6235B bulb for both the high beam and low beam headlight positions across the 2001-2005 model years.
The 6235B is a festoon-style bulb, meaning it is cylindrical in shape with contact caps at each end rather than a screw or bayonet base.
The 6235B operates at 12 volts, which is standard for most small-displacement motor scooters of this era.
The glass envelope of the 6235B carries a blue tint, which is a characteristic of specialty festoon applications and distinguishes it from clear general-purpose festoon bulbs.
The 6235B is classified under the ANSI standard applicable to the United States and Canada, meaning its specifications conform to North American standardization rather than European ECE regulations.
Because the same bulb number, 6235B, fills both the high beam and low beam sockets on the Vespa ET2, the two positions are not served by separate bulb types, which is a notable fitment detail for replacement purposes.
The specialty application classification of the 6235B indicates it is not a general-purpose festoon bulb, and substituting a standard festoon bulb of similar physical size may not satisfy the original equipment specification.