What does "Lumen" refer to in lighting terminology?

In lighting terminology, "Lumen" is defined as a measure of light output. Specifically, it quantifies the amount of visible light emitted by a light source. This measurement is essential for understanding how bright a lighting fixture appears to the human eye. The more lumens a bulb produces, the brighter the light will be in the space.

This distinction is crucial for consumers and professionals alike when selecting lighting solutions for various applications, ensuring the right amount of light for specific needs, such as general illumination or task lighting. Understanding lumens helps in making informed decisions about which lighting sources to use based on the desired brightness level for a particular environment or task.