I see, the Wallbox Quasar has "Bidirectional Technology" for powering the home. That's sexy.
"Up to 7.4kW of power for charging or discharging". I was expecting a little more power for the home and the Truck. That is only 32 amps and the Lightning can charge at a rate of 80 amps.
Engineering Explained called this hardware a "charger", which is very common, but a bit of a misnomer. The charging hardware, the boxes that change AC to DC and control the battery, voltage, charging, ect. are in the Truck.
The more correct term is EVSE, Electric Vehicle Supply Equipment, and the are basically a extention cord with saftey features built in.
For EVSEs, AC power goes in and AC power goes out. Voltage is the same. And that is why its just a saftey extention cord. Now some companies have charged a lot of money for these and added a lot of features. Lots of fluff. In many cases the car/truck can handel the fluffy features - charge timing, rate, phone connectivity, ect.
The exception to this is DC Fast Charging.