Light (1; 1'; 1"; 1001'; 1001") for illuminating a space in a building and/or for illuminating an item located in a room or a person located in a room, wherein the light (1; 1'; 1"; 1001'; 1001") comprises a light base body (6; 6'; 6"; 1006'; 1006") and lighting segments which are inserted into the light base body (6; 6'; 6"; 1006'; 1006"); wherein each of the lighting segments emits light in a directional manner and has a predefined emission characteristic; wherein the emission characteristics of the lighting segments comprise at least two different emission characteristics; wherein the lighting segments each have an optical component by means of which the emission characteristic of the lighting segment is achieved in each case; wherein at least one of the lighting segments has a reflector as an optical component , the reflector having a quadrilateral outer contour , the reflector having a plurality of light-reflecting partial surfaces (31-34) and in each case adjacent ones of the light-reflecting partial surfaces (31-34) being joined together at one of a plurality of corners (39a-39d) of the reflector , and of the plurality of light-reflecting partial surfaces (31-34) of the reflector at least one being designed as a standard reflector surface or as part of a standard reflector surface and at least one being designed as a free-form surface; wherein the inserted lighting segments form an array extending in a plane (E; E') and the lighting segments are fixed in orientation; and wherein the light (1; 1'; 1"; 1001'; 1001") is configured for an arrangement of the lights (1; 1'; 1"; 1001'; 1001") in the ceiling region in a room in a building and/or for an arrangement of the light (1001'; 1001") in the wall region in the room in the building. wherein the light (1; 1'; 1"; 1001'; 1001") comprises a light base body (6; 6'; 6"; 1006'; 1006") and lighting segments which are inserted into the light base body (6; 6'; 6"; 1006'; 1006"); wherein each of the lighting segments emits light in a directional manner and has a predefined emission characteristic; wherein the emission characteristics of the lighting segments comprise at least two different emission characteristics; wherein the lighting segments each have an optical component by means of which the emission characteristic of the lighting segment is achieved in each case; wherein at least one of the lighting segments has a reflector as an optical component , the reflector having a quadrilateral outer contour , the reflector having a plurality of light-reflecting partial surfaces (31-34) and in each case adjacent ones of the light-reflecting partial surfaces (31-34) being joined together at one of a plurality of corners (39a-39d) of the reflector , and of the plurality of light-reflecting partial surfaces (31-34) of the reflector at least one being designed as a standard reflector surface or as part of a standard reflector surface and at least one being designed as a free-form surface; wherein the inserted lighting segments form an array extending in a plane (E; E') and the lighting segments are fixed in orientation; and wherein the light (1; 1'; 1"; 1001'; 1001") is configured for an arrangement of the lights (1; 1'; 1"; 1001'; 1001") in the ceiling region in a room in a building and/or for an arrangement of the light (1001'; 1001") in the wall region in the room in the building. <EOS>