A color tunable filament lamp , comprising: at least one tunable white LED filament adapted to emit white light; characterized in that the color tunable filament lamp further comprises at least one RGB LED filament , wherein each RGB LED filament of the at least one RGB LED filament comprises a plurality of groups , each group comprising a red LED , a green LED and a blue LED , a controller electrically coupled to the at least one tunable white filament and the at least one RGB LED filament , wherein the controller is adapted to control the at least one tunable white LED filament and the at least one RGB LED filament such that the color tunable filament lamp emits white or colored light corresponding to a target point selected by a user or a machine, wherein each tunable white LED filament of the at least one tunable white LED filament comprises first LEDs having a first pre-set correlated color temperature and second LEDs (16") having a second pre-set correlated color temperature lower than the first pre-set correlated color temperature, the first and second pre-set correlated color temperatures defining a sub-range of a correlated color temperature range of the color tunable filament lamp , wherein the controller is configured to control the first LEDs and the second LEDs (16") but not the at least one RGB LED filament for target points in said sub-range , and wherein the first and second pre-set correlated color temperatures are pre-set such that a maximum deviation from the black body line of the combined white light of first LEDs and the second LEDs (16") in said sub-range during operation is 7 SDCM, and wherein the controller is configured to control the at least one RGB LED filament and one of the first LEDs and the second LEDs (16") for target points in the correlated color temperature range which are outside said sub-range . at least one tunable white LED filament adapted to emit white light; characterized in that the color tunable filament lamp further comprises at least one RGB LED filament , wherein each RGB LED filament of the at least one RGB LED filament comprises a plurality of groups , each group comprising a red LED , a green LED and a blue LED , a controller electrically coupled to the at least one tunable white filament and the at least one RGB LED filament , wherein the controller is adapted to control the at least one tunable white LED filament and the at least one RGB LED filament such that the color tunable filament lamp emits white or colored light corresponding to a target point selected by a user or a machine, wherein each tunable white LED filament of the at least one tunable white LED filament comprises first LEDs having a first pre-set correlated color temperature and second LEDs (16") having a second pre-set correlated color temperature lower than the first pre-set correlated color temperature, the first and second pre-set correlated color temperatures defining a sub-range of a correlated color temperature range of the color tunable filament lamp , wherein the controller is configured to control the first LEDs and the second LEDs (16") but not the at least one RGB LED filament for target points in said sub-range , and wherein the first and second pre-set correlated color temperatures are pre-set such that a maximum deviation from the black body line of the combined white light of first LEDs and the second LEDs (16") in said sub-range during operation is 7 SDCM, and wherein the controller is configured to control the at least one RGB LED filament and one of the first LEDs and the second LEDs (16") for target points in the correlated color temperature range which are outside said sub-range . <EOS>