Abstract: A ceiling light or wall light having a connection to a typical lighting power circuit, having an integrated heating fan function, and an intelligent control for simple operation and functions for saving energy. In order to avoid a cumbersome variation of the heating possibilities (for example, the installation of a heater, placement of an additional heater, and modification of the control of an existing heater), a replacement of the usually already existing lighting takes over this functionality. The device includes a common housing, that contains at least one lighting element, at least one electrical heating element, at least one fan, and at least one programmable electronic controller, by which the lighting, the fan and the heater are controlled and/or regulated, together with and/or separate from each other. All rooms of a building which have lighting and are to be heated only for a limited period may be part of the area of application.

Abstract: A ceiling light or wall light having a connection to a typical lighting power circuit, having an integrated heating fan function, and an intelligent control for simple operation and functions for saving energy. In order to avoid a cumbersome variation of the heating possibilities (for example, the installation of a heater, placement of an additional heater, and modification of the control of an existing heater), a replacement of the usually already existing lighting takes over this functionality. The device includes a common housing, that contains at least one lighting element, at least one electrical heating element, at least one fan, and at least one programmable electronic controller, by which the lighting, the fan and the heater are controlled and/or regulated, together with and/or separate from each other. All rooms of a building which have lighting and are to be heated only for a limited period may be part of the area of application.

Abstract: The invention relates to a device for internal pressure relief of a pig movable through a pipeline and/or some other pressure-tight sealed working implement introduced into an external pressure medium and having a pressure relief valve. To increase the classification for operational reliability, it is proposed that at least one rupture disk be placed downstream of the pressure relief valve in the pressure relief direction.