— compact external lighting source that attaches to the camera or nearby, helping to shoot in the dark, indoors, in the evening, or underwater. Unlike built-in solutions in other devices, this module is specifically designed for mobile shooting: it's lightweight, usually splash or moisture-resistant, and doesn't weigh the camera down too much. The light module is especially useful when you need to illuminate a face, objects in front of the camera, or details in the frame, so the picture isn't too noisy or dull.
