What's the difference between "flash" and "photographic light" in the studio? What's the use of wireless flash?

Flash lights are easier to dim spotlights, and high power means more possibilities for light than for light. For example, dimming sunlight is a patent for flash lamps.

Flash is easier to get high quality. When the brightness is high, you can shoot with a low iso+ small aperture, which preserves a lot of details. This is very important in high-end commercial photography.

Photographic lamp is intuitive, what you see is what you get, and it can distribute light more quickly and accurately. When the ambient light is dim, focusing under the photographic lamp is more efficient and effective.