Why use a light meter? There are several reasons, but they have two principal uses:
- Measuring the levels of light in public spaces or workplaces for health and safety reasons
- In photography, to assess the ideal photographic equipment and exposure settings for a planned photoshoot
The first use applies to locations such as offices, hospitals, schools - to any venues, in fact, with significant footfall. Employers have a statutory duty to ensure that workplaces have adequate and suitable lighting, and this has clear safety implications for public spaces too.
Handheld meters are used in professional photography to optimise shots. They measure ambient light and display the ideal shutter speed and aperture number. This is especially valuable in outdoor environments where the levels of ambient light tend to be quite complex.
Cinematographers and film set designers also make use of light meters to ensure scenes will be properly lit.
Other uses for light meters include:
- In hydroponics, to ensure that plants receive adequate light for healthy growth
- In construction and architecture, to ensure that lighting systems have been properly installed
- When installing solar panels, to ensure the optimum position and angle have been chosen
- Measuring light pollution levels, to help monitor and prevent excess light
To summarise, lux meters can be easily used in domestic, commercial and industrial environments to:
- Measure light levels and light intensity
- Provide insights on any adjustments that may be necessary
- Optimise both performance and comfort, depending on the specific application