[sterlind]

That's voltage, not amperage. Just because it's a 120V receptacle doesn't mean you can draw large current. My laptop charger gets booted off the grid pretty frequently on a full plane.

[fomine3]

Even if it's limited to 1A, 1A/120V must be enough. It can't have loud fan so must be power efficient.

[loeg]

I wouldn’t assume you can draw 1A.