A light meter is a device used to measure the intensity of light in a specific area. It helps photographers, videographers, and artists determine the correct exposure settings for their cameras or lighting equipment. By measuring the amount of light, users can achieve better results in their work, ensuring that images are neither too bright nor too dark. There are two main types of light meters: incident light meters and reflected light meters. Incident light meters measure the light falling on a subject, while reflected light meters measure the light bouncing off the subject. Both types are essential tools for achieving optimal lighting conditions in various settings.