Photographic, cinematographic, optical, signalling, control apparatus and instruments, namely, flashlights for use in photography, flash lamps, photo elements, namely, photoresistors, photodiodes, photosensors, solar cells, and photoelectric cells, optical fibres and fibre optic cables, electric light dimmers, screens, namely, computer screens, touch screens, video screens, optical lamps, fluorescent screens, light-emitting diodes, stroboscopes, stands for special cases for photographic appar...