Light Painting Photography is photographic techniques of moving a light source while taking a long exposure photograph to illuminate a subject. What you need are camera that can take a long exposure and a light source for example flash.
In a night without light or a dark room. The settings are taking a few seconds to 30 seconds exposure. Use the light source to
illuminate the subject. Low ISO and Aperture. Here are some examples.
- F32, ISO 100, 20 seconds.
2. F22, ISO 100, 30 Seconds.