

I’ve been to Argentina and have family there, and sadly have to lean towards advising against visiting at the moment. The political and economic situation is one reason, and it pains me to say this, but if our friends & relatives there are anything to go by, the constant whining would be a total showstopper for me.
Having said that, if you have to go, do consider Bariloche, Puerto Madryn, Salta (book a tour to Jujuy if you don’t mind the altitude) and Iguazú (both the Argentine and Brazilian half are fine). Be extra careful in Buenos Aires - read up on all the ways tourists are scammed beforehand, only use official taxis and avoid La Boca after 17:00.
Be aware that your credit card may or may not work, and that cash withdrawal at banks and ATMs is both severely limited and hugely expensive. Currency exchanges were also routinely out of cash at least until a couple years ago. We’ve found the best way to obtain cash is to send yourself money by Western Union.












Your lamps aren’t LED but CFL (think old neon signs), and the small black box is not a transformer but an inductor.
In short, your lamps produce light by an electrical current flowing through a gas in a glass tube. To make the gas conductive to electricity, a very high voltage is applied for a short amount of time. That’s what the thing in the plug does.
I don’t know that particular model of lamp, but my suggestion is to use intact lamps and bin the broken ones. There’s a considerable risk of electric shock, fire or (in extreme cases) high-velocity glass shards if you try replacement parts at random and don’t know exactly what you’re doing. As the lamps haven’t been working beforehand anyway, I suspect they’re generally beyond repair.