Re: Solar charge controller question
If Brazil is like some other countries (offhand, I think Equador) there may be a 100% import tariff on electronic goods, so a $100 controller becomes $200 and a $200 controller becomes $400, and that's before international shipping and a possible brokerage free get tacked on.
We have similarly insane trade policies here in the US. Mercedes was building the Sprinter vans overseas and then taking the tops off, to be re-assembled in the US because it was cheaper overall than paying the tariff on a completed vehicle. Toyota was installing air conditioning "at the port" in the US because it was cheaper than shipping in cars with AC factory-installed overseas. All kinds of lunacy from the consumer point of view.
Ignoring the questions of whether China and South Korea actually subsidize the export of electronics to the US below cost.