There are 3 charging levels. 1 is basically just “plug your car into a wall outlet”. 2 is more powerful, and usually involves installing a little charging box with a cable, but it’s still AC and fairly slow. 3 is the DC fast charging that operates at crazy high voltages and currents.
Is level 2 solely defined by “240V AC”? I wasn’t sure, although the portable chargers some brands have in the US with 240V attachments are still level 1 I think.