What does '1800W' actually mean for cooking performance?

1800W is roughly the practical ceiling for a unit running on a standard 120V household outlet, and most portable induction cooktops in this pool share that rating. Higher wattage generally means faster boils and more aggressive searing, but real-world speed also depends on coil size and how the unit cycles power at lower settings. Note that 1800W on a 15-amp circuit can trip breakers if other appliances share the line.