A Soft box is a type of photographic lighting evice, one of a number of photographic soft light devices. All the various soft light types create soft diffused light by directing light through some diffusing material, or by "bouncing" light off a second surface to diffuse the light. The best known form of bouncing source is the umbrella light where the light from the bulb is bounced off the inside of a metalized umbrella to create a soft indirect light.