A luminaire, comprising - a plate-shaped light-conducting element having a first large surface region by which a plane is defined; a second large surface region opposite the first large surface region, by which another plane is defined; and a narrow edge surface region by which the second large surface region is connected to the first large surface region, wherein a first side is separated from a second side by the plane, and the second large surface region is located on the second side of the plane, - an LED light source with LEDs for emitting a light, wherein the design is such that the light at least partially radiates via the edge surface region into the light-conducting element, and then leaves the light-conducting element via the second large surface region to achieve direct illumination, - an elongated light guide element that extends along the edge surface region and has light openings, wherein the design is such that a portion of the light radiates to the first side and, in order to achieve indirect illumination, thereby radiates through the light openings, wherein the light guide element is moreover designed to hold the LED light source, characterized in that the light openings are designed as reflectors and are bordered by vertically extending wall regions which are designed to be highly reflective, wherein the edge surface region is positioned so closely to the LEDs that practically all of the light radiates into the light-conducting element, and the light-conducting element has a surface structuring via which a portion of the light radiated into the light-conducting element is deflected toward the light openings in the light guide element. - a plate-shaped light-conducting element having a first large surface region by which a plane is defined; a second large surface region opposite the first large surface region, by which another plane is defined; and a narrow edge surface region by which the second large surface region is connected to the first large surface region, wherein a first side is separated from a second side by the plane, and the second large surface region is located on the second side of the plane, - an LED light source with LEDs for emitting a light, wherein the design is such that the light at least partially radiates via the edge surface region into the light-conducting element, and then leaves the light-conducting element via the second large surface region to achieve direct illumination, - an elongated light guide element that extends along the edge surface region and has light openings, wherein the design is such that a portion of the light radiates to the first side and, in order to achieve indirect illumination, thereby radiates through the light openings, wherein the light guide element is moreover designed to hold the LED light source, characterized in that the light openings are designed as reflectors and are bordered by vertically extending wall regions which are designed to be highly reflective, wherein the edge surface region is positioned so closely to the LEDs that practically all of the light radiates into the light-conducting element, and the light-conducting element has a surface structuring via which a portion of the light radiated into the light-conducting element is deflected toward the light openings in the light guide element.