Autosport Labs

I've 2 EDIS6 modules with slightly different numbering. One’s 91-BB-12K072-BA and the other's F4ZF-12K072-AB. Does anybody know what the first and last set of characters mean? I'm assuming they may be a date and revision so I'd like to know how to decode them and if they both have the same features. I remember reading a post about multiple sparks and wondered if any of these can do that?

dave, AFAIK, all EDIS are capable of multi spark, but note that MJ is not.

alexander.
sydney, oz.