The BGM Pro Conversion light switch is the perfect addition to: 7673183 Ignition set -BGM Pro electronic- Vespa V50 - V90, PV, ET3, PK S 9077011 Wiring harness set Conversion -BGM PRO, Vespa AC conversion to electronic ignition 7672167 Headlight -OEM QUALITY, rectangular Vespa V50 Special - Bilux It is required if the vehicle has an electronic ignition with [...]