I'm currently in Manuel Antonio, Costa Rica. I'm living in a relatively off-the-beaten-track house and at the top of some of the utility poles leading to my house are these canisters (the light grey thing with "IC" on it):
What is that? Is it a super localized transformer for the light fixture? Is it something else?
On the 5m walk from the main road to my house, there are many instances of these.
NB: this is in Costa Rica, not the US.
So, a second question is... what is the equivalent of this in the US? Or is it common in more rural parts of the US? (I live in a city, normally).