I cannot recall encountering a type L in Italy. There might have been, but there were other type-C wall outlets for me to use.
Most modern electronic power supplies and AC adapters (chargers for cell phones, cameras, laptops, etc...) can run on 220V/50Hz as well as 110V/60Hz in USA. So as long as it can plug in via an adapter, it will work.
That said, I was careful and read the fine print on all adapters I have, and found out that the one for my electric toothbrush runs on 110V only. Uh Oh! A disaster averted.
So, in looking for a mini transformer to use with the toothbrush (it was cheaper than buying another toothbrush set), I found out that there were 220V/110V transformers that would not plug into the C outlet. They have the same round pins and with the right spacing, but cannot go into the recess of the C outlet. Perhaps they were for use in Asia.