Watt (W) is a unit of power used to measure the rate of energy transfer. It tells you how quickly an appliance consumes electricity. Technically, one watt equals one joule per second.

Watts are units of electric power. Think of wattage as electricity at work when heating or illuminating a room in your home.

Running watts, on the other hand, refers to an appliance's actual power consumption. When it's up and ready, the appliance begins drawing less, typically two to three times lower than the starting ...