What does the camera flash have to do with sunlight?

Ha ha! I really admire the director's imagination! According to the classification of light sources, flashlights are artificial light sources, and sunlight is natural light. In terms of color temperature and illumination, the flash is similar to the sunshine in a sunny morning. In addition, the light output of the flash is adjustable, so the sunshine is not very good. The other two have little to do with each other, and their luminous principles differ by a hundred thousand miles.