A playroom system, comprising: - a dimmable room that is limited by walls, a floor and a ceiling, wherein at least one part of at least one wall (1, 1a) is provided with a fluorescent coating, wherein the fluorescent coating is excitable by light in visible and/or ultraviolet range, - a pulsed wide-angle light source that is mounted on or in another wall opposite the wall or ceiling of the playroom provided with the fluorescent coating or at a user-safe location within the room and is directed at least onto the fluorescent coating, - at least one template (14, 25) that is suitable for being attached to the fluorescent coating, - a control system for the playroom, - a standby light, characterized in that the playroom control system comprises: - a central control device to which a control panel for the administrative control of the playroom is functionally connected, - an operative control panel (4, 5, 8, 13) and a button connected to the control panel for activating the light source, wherein the operative control panel (4, 5, 8, 13) is designed such that it is connectable to the central control device, wherein the control panel for the administrative control of the playroom is designed such that the cooling time of the light source and the regeneration time of the fluorescent coating are adjustable, and wherein the time for cooling the light source and/or regenerating the fluorescent coating determines the minimum time interval required between two successive activations of the light source. - a dimmable room that is limited by walls, a floor and a ceiling, wherein at least one part of at least one wall (1, 1a) is provided with a fluorescent coating, wherein the fluorescent coating is excitable by light in visible and/or ultraviolet range, - a pulsed wide-angle light source that is mounted on or in another wall opposite the wall or ceiling of the playroom provided with the fluorescent coating or at a user-safe location within the room and is directed at least onto the fluorescent coating, - at least one template (14, 25) that is suitable for being attached to the fluorescent coating, - a control system for the playroom, - a standby light, the playroom control system comprises: - a central control device to which a control panel for the administrative control of the playroom is functionally connected, - an operative control panel (4, 5, 8, 13) and a button connected to the control panel for activating the light source, wherein the operative control panel (4, 5, 8, 13) is designed such that it is connectable to the central control device, - a central control device to which a control panel for the administrative control of the playroom is functionally connected, - an operative control panel (4, 5, 8, 13) and a button connected to the control panel for activating the light source, wherein the control panel for the administrative control of the playroom is designed such that the cooling time of the light source and the regeneration time of the fluorescent coating are adjustable, and wherein the time for cooling the light source and/or regenerating the fluorescent coating determines the minimum time interval required between two successive activations of the light source.