Correct. Watts law states that voltage tines amperage equals wattage. If you make a triangle with one box on top and two on the bottom you can figure out wattage voltage or amperage if you have any of the two. Voltage and amperage go on the bottom. Example. If wattage is 100 and amperage is 1 amp voltage would be 100 divided by 1 equals 100 volts. It is a handy formula for figuring things out when running an inverter or generator. Hope this helps.