What is the unit of electrical power?

The unit of electrical power is the watt. Power in electrical terms is defined as the rate at which energy is consumed or produced. One watt is equivalent to one joule per second, and it represents the amount of energy transferred or converted per unit of time. In practical applications, it signifies how much electrical work is done over a given period.

In contrast, a volt measures electrical potential or voltage, reflecting the pressure that pushes electric charges through a circuit. An ampere, or amp, indicates the flow of electric charge, specifically how many coulombs pass through a point in a circuit per second. Lumen, on the other hand, measures luminous flux, which is the amount of light emitted by a source, and is not related to electrical power. Each of these units has a distinct role in electrical and lighting systems, but the watt is the standard measurement specifically for electrical power.