The present invention relates to an illumination apparatus (100). The illumination apparatus (100) comprising: a first light source (102) configured to emit light having a first spectral light distribution having a first main light intensity peak about a first peak wavelength providing light stimulation, and a second light source (104) configured to emit light having a second spectral light distribution having a second main light intensity peak about a second peak wavelength being different from the first peak wavelength, a third light source (106) configured to emit light having a third spectral light distribution having a third main light intensity peak about a third peak wavelength being different from the first peak wavelength and from the second peak wavelength, wherein the illumination apparatus (100) is configured to provide adjustment of light intensity of the first light source (102) and of light of the second light source (104), thereby providing a relative light intensity between the first light source (102) and the second light source (104), wherein the illumination apparatus (100) is configured to provide adjustment of light intensity of the third light source (106) in to order to compensate for the adjusting of the relative light intensity between the first light source (102) and the second light source (104).La présente invention concerne un appareil d'éclairage (100). L'appareil d'éclairage (100) comprend : une première source de lumière (102) configurée pour émettre de la lumière ayant une première distribution de lumière spectrale ayant un premier pic d'intensité de lumière principal concernant une première longueur d'onde de pic fournissant une stimulation de lumière, et une seconde source de lumière (104) configurée pour émettre de la lumière ayant une seconde distribution de lumière spectrale ayant un second pic d'intensité de lumière principal concernant une seconde longueur d'onde de pic différente de la première longueur d'onde de pic, une tr
