Is the spotlight in the studio used to fill the light? Is the board next to it called a reflector?

The earliest flash lamp was called magnesium light because magnesium metal was added to the bulb, which gave off strong white light under the action of voltage. It is disposable, and a light bulb can only be used once. Now the structure of the flash is different. Inert gas is added into the flash tube, which emits strong arc light under high pressure. Because it can be reused, this kind of lamp is often called ten thousand times flash, and it is currently in use.

The board next to it is called a reflector, which can fill the light according to the photographic intention.