A lighting assembly, comprising: a housing having a longitudinal direction, a lateral direction and a height direction which are perpendicular to each other; a lighting system which is installed in the housing and configured to produce light and emit the light out from the housing, the lighting system comprising a first light source; a reflector system which is configured for reflecting the light produced by the lighting system out from the housing and comprises a first reflector including a first reflector surface which is a concave surface with a first radius of curvature, and - a second reflector surface which is a concave surface with a second radius of curvature which is larger than the first radius of curvature, a centre of curvature of the second reflector surface being spaced from a centre of curvature of the first reflector surface; which lighting assembly is configured to be such that most of the light emitted by the lighting system out from the housing passes via the reflector system; and in which lighting assembly the first reflector surface and the second reflector surface are adjacent reflector surfaces, of which the second reflector surface is located in the lateral direction further away from the first light source than the first reflector surface, characterized in that the first reflector surface and the second reflector surface of the first reflector are located, with respect to the first light source, such that a ray of light output from the centre of the first light source is reflected from a first edge of the first reflector surface at a first reflection angle (β1) relative to the height direction, from a second edge of the first reflector surface at a second reflection angle (β2) relative to the height direction, from the middle point between a first edge and a second edge of the second reflector surface at a third reflection angle (β31) relative to the height direction, and from the second edge of the second reflector surface at a fourth reflection angle (β4) relative to the height direction, whereby each of the first reflection angle (β1), the second reflection angle (β2), the third reflection angle (β31) and the fourth reflection angle (β4) is smaller than a threshold angle of reflection which is 0° - 10°. a housing having a longitudinal direction, a lateral direction and a height direction which are perpendicular to each other; a lighting system which is installed in the housing and configured to produce light and emit the light out from the housing, the lighting system comprising a first light source; a reflector system which is configured for reflecting the light produced by the lighting system out from the housing and comprises a first reflector including a first reflector surface which is a concave surface with a first radius of curvature, and - a second reflector surface which is a concave surface with a second radius of curvature which is larger than the first radius of curvature, a centre of curvature of the second reflector surface being spaced from a centre of curvature of the first reflector surface; - a second reflector surface which is a concave surface with a second radius of curvature which is larger than the first radius of curvature, a centre of curvature of the second reflector surface being spaced from a centre of curvature of the first reflector surface; which lighting assembly is configured to be such that most of the light emitted by the lighting system out from the housing passes via the reflector system; and in which lighting assembly the first reflector surface and the second reflector surface are adjacent reflector surfaces, of which the second reflector surface is located in the lateral direction further away from the first light source than the first reflector surface, characterized in that the first reflector surface and the second reflector surface of the first reflector are located, with respect to the first light source, such that a ray of light output from the centre of the first light source is reflected from a first edge of the first reflector surface at a first reflection angle (β1) relative to the height direction, from a second edge of the first reflector surface at a second reflection angle (β2) relative to the height direction, from the middle point between a first edge and a second edge of the second reflector surface at a third reflection angle (β31) relative to the height direction, and from the second edge of the second reflector surface at a fourth reflection angle (β4) relative to the height direction, whereby each of the first reflection angle (β1), the second reflection angle (β2), the third reflection angle (β31) and the fourth reflection angle (β4) is smaller than a threshold angle of reflection which is 0° - 10°.