The inventive concept relates to illumination equipment for underwater photography and/or videography. The operating structure of the inventive concept achieves such an illumination of the environment, items, and living beings under water that affords optimum color at optimum distances for perception by an average person. The illumination device comprises a plurality of light emitters, which are configured to illuminate the environmental area of the illumination equipment. The illumination equipment includes at least one device for spectrum measurement that is configured to acquire information about the optical spectrum of the ambient illumination within the environmental area, and control means for modifying the emissions of the light emitters based on the acquired information about the optical spectrum. The light emitters may be at least one or more of red, blue, green, and white light emitters. The light spectrum is measured using an RGB-sensor formed by at least three illuminance measurement sensors.