What is Kilowatt-Hour (kWh)

Horace He

Last Updated: September 24, 2023

What is Kilowatt-Hour (kWh)

A Kilowatt-Hour (kWh) is a unit of measurement commonly used in the lighting industry to quantify the amount of electrical energy consumed over a specific period of time. It is a metric for calculating energy usage and determining electricity bills.

To calculate kWh, the power consumption of a lighting system is multiplied by the number of hours the system has been operated. For example, if a lighting system has a power consumption of 1 kilowatt (1 kW) and is operated for 5 hours, the energy consumption would be 5 kilowatt-hours (5 kWh).

Understanding kWh allows for a more accurate assessment of the efficiency and energy usage of lighting systems. kWh is a key factor in determining electricity bills, as a higher energy consumption results in higher costs. Therefore, being familiar with kWh is crucial for optimizing energy usage and making informed decisions in the lighting industry.

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