The power consumption of these best electric cooktops varies significantly. For instance, the Mai Cook Stainless Steel 3500W Electric Induction Cooktop operates on a 20 amp 240-volt circuit, equating to 3500 watts. Duxtop models, considered among the best induction cooktops, operate on a 120 Volt 15 Amp electrical outlet. Knowing the wattage, such as how many watts a stove burner uses or how many watts an induction burner uses, can help you calculate the cost of use and choose the best electric burners for your needs.