A watt is a unit of power— usually electrical power. This unit was named in honor of James Watt, the inventor of the steam engine. Although the watt is the standard unit of power in the metric system of MEASUREMENT, the kilowatt is more generally used. The kilowatt is simply 1000 watts.
In the metric system, a watt is that amount of power used when a force of one newton acts through a distance of one meter in one second of time. In electrical terms the watt is equal to the power developed when one AMPERE flows under a pressure of one VOLT.