A luminaire comprising: - a light source , - a lamp shade comprising at least one surface feature , the at least one surface feature comprising an identifier, which identifier is representative of at least one characteristic of the lamp shade , and - a luminaire component comprising: - a detector arranged for detecting the at least one surface feature of the lamp shade , and - a first processor arranged for retrieving the identifier from the detected at least one surface feature , and for identifying the at least one characteristic of the lamp shade based on the retrieved identifier, wherein the first processor is arranged for controlling the light output of the light source based on the at least one characteristic of the lamp shade , characterized in that the at least one surface feature is embedded in the surface of the lamp shade , and wherein the at least one surface feature comprised in the lamp shade comprises a protrusion and/or a depression in the surface of the lamp shade , which protrusion and/or depression comprises the identifier, and wherein the detector is arranged for detecting the protrusion and/or depression so as to detect the identifier. - a light source , - a lamp shade comprising at least one surface feature , the at least one surface feature comprising an identifier, which identifier is representative of at least one characteristic of the lamp shade , and - a luminaire component comprising: - a detector arranged for detecting the at least one surface feature of the lamp shade , and - a first processor arranged for retrieving the identifier from the detected at least one surface feature , and for identifying the at least one characteristic of the lamp shade based on the retrieved identifier, wherein the first processor is arranged for controlling the light output of the light source based on the at least one characteristic of the lamp shade , characterized in that the at least one surface feature is embedded in the surface of the lamp shade , and wherein the at least one surface feature comprised in the lamp shade comprises a protrusion and/or a depression in the surface of the lamp shade , which protrusion and/or depression comprises the identifier, and wherein the detector is arranged for detecting the protrusion and/or depression so as to detect the identifier. - a detector arranged for detecting the at least one surface feature of the lamp shade , and - a first processor arranged for retrieving the identifier from the detected at least one surface feature , and for identifying the at least one characteristic of the lamp shade based on the retrieved identifier, wherein the first processor is arranged for controlling the light output of the light source based on the at least one characteristic of the lamp shade , characterized in that the at least one surface feature is embedded in the surface of the lamp shade , and wherein the at least one surface feature comprised in the lamp shade comprises a protrusion and/or a depression in the surface of the lamp shade , which protrusion and/or depression comprises the identifier, and wherein the detector is arranged for detecting the protrusion and/or depression so as to detect the identifier. wherein the first processor is arranged for controlling the light output of the light source based on the at least one characteristic of the lamp shade , characterized in that the at least one surface feature is embedded in the surface of the lamp shade , and wherein the at least one surface feature comprised in the lamp shade comprises a protrusion and/or a depression in the surface of the lamp shade , which protrusion and/or depression comprises the identifier, and wherein the detector is arranged for detecting the protrusion and/or depression so as to detect the identifier. <EOS>