A directed beam luminaire for combining more than three different colors of LED into a single homogenized light beam, characterised in that the luminaire comprises: three circular LED arrays (20, 30, 40), each of the three LED arrays configured to emit light in one of three different wavelength ranges respectively, wherein a first array is configured to emit light in the long wavelength range, a second array is configured to emit light in the short wavelength range, and a third array is configured to emit light in a midrange wavelength range, wherein each of the three LED arrays has first and second sets of LEDs, wherein the LEDs of the first sets have a first discrete wavelength peak and the LEDs of the second sets have a second different discrete wavelength peak, the first and second discrete wavelength peaks being in the respective wavelength range of said LED array, and wherein the output of at least one of the sets of LEDs is controllable independently of the other sets of LEDs; first and second dichroic filters (52, 54; 152, 154) adapted to combine light (26, 36, 46) emitted by the three LED arrays (20, 30, 40) into a single homogenized light beam, wherein the first and second dichroic filters are configured to selectively transmit or reflect the discrete wavelength peaks of the LEDs of each of the three LED arrays (20, 30, 40), wherein at least one of the dichroic filters (52, 54; 152, 154) is configured to allow the different first and second discrete wavelength peaks of at least one LED array to pass through unaffected; and a focusing and homogenizing optical device that receives the single homogenized light beam emitted by the dichroic filters (52, 54; 152, 154), without passing through intervening lenses, and that focuses it to a focal point. three circular LED arrays (20, 30, 40), each of the three LED arrays configured to emit light in one of three different wavelength ranges respectively, wherein a first array is configured to emit light in the long wavelength range, a second array is configured to emit light in the short wavelength range, and a third array is configured to emit light in a midrange wavelength range, wherein each of the three LED arrays has first and second sets of LEDs, wherein the LEDs of the first sets have a first discrete wavelength peak and the LEDs of the second sets have a second different discrete wavelength peak, the first and second discrete wavelength peaks being in the respective wavelength range of said LED array, and wherein the output of at least one of the sets of LEDs is controllable independently of the other sets of LEDs; first and second dichroic filters (52, 54; 152, 154) adapted to combine light (26, 36, 46) emitted by the three LED arrays (20, 30, 40) into a single homogenized light beam, wherein the first and second dichroic filters are configured to selectively transmit or reflect the discrete wavelength peaks of the LEDs of each of the three LED arrays (20, 30, 40), wherein at least one of the dichroic filters (52, 54; 152, 154) is configured to allow the different first and second discrete wavelength peaks of at least one LED array to pass through unaffected; and a focusing and homogenizing optical device that receives the single homogenized light beam emitted by the dichroic filters (52, 54; 152, 154), without passing through intervening lenses, and that focuses it to a focal point.