>Literally a mains plug, with a simple variable resistor the kind you find on plant heat pads (~1$ cost), shorted out in a metal tube and attached to a cheap pair of scissors with 2 badly welded on contact patches. Wire is secured with electrical tape to the scissors.
Dios mio, the pinnacle of engineering kek

The fact that it's clearly a US plug but the listing says 220V is the icing on the cake, this is some peak redneck engineering. The reviews show it just ships with a small plastic US-EU adapter.
This might be the worst item I've ever seen on aliexpress actually.