Top quality, made by SIP to suit ALL Lambretta or Vespa VAPE electronic ignition systems. These are all the sport version, these are also called variable timing modules and retard up to 8 degrees at around 8000 RPM . This means you can set them around 23 degrees to give you a better starting. These are a stright swap as a like-for-like or you can swap this instead of your static timed CDI with no other alterations to give you advanced/retarded ignition. 
 
These are easily distinguished by their GREEN earth wire, the static type is WHITE.
 
Product code: LUSP51008410