This piece was conceived as an essay between the suggestion of the protocol of realizing a silkscreen matrix and the staging around the concepts that involve the appearance of an image on a Screen. From this, light is assumed as the common element. Here it is arranged so as to follow the same order of lamps from which the matrix image has resulted. Here, however, an arduino was used to manipulate the on and off, starting from the RGB binary code, simulating the mechanics of the screen process, as well as the image code of a Screen. The choice of flashing between white and red lights is also taken as an essay. First, the red light in contact with the blue of the emulsion decreases the u + image reading, making it difficult to perceive the image; second, there is anything in the red that attracts / inhibits / forbids the viewer / observer. It was this characteristic that motivated above all, the choice.