1 watt (W) is a unit of power. It is defined as the rate at which energy is used or transferred. Specifically:
- 1 watt is equal to **1 joule per second** (1 W = 1 J/s).
This means if an electrical device uses 1 watt of power, it is consuming or using 1 joule of energy every second.
In simple terms, if you have a 1-watt light bulb, it means the bulb uses 1 joule of energy every second it is turned on.