2 Festoon Bulbs 12V 5W 38mm
Usually tail light bulb for Vespa Small & Large Frame
4100021 is a 12 volt 5 watt festoon bulb with clear glass, approx 38mm long.
Standard bulb: Identical to the original bulbs and can be easily exchanged and driven.
Bulb sockets may vary from model to model. Check your old socket to make sure that you will order the correct one!
