Patent ID: 7358961

Claim:
A LED lighting system, comprising: a LED light source including a plurality of colored LEDs operable to emit one of a plurality of spectral outputs as a function of at least one current flowing through said plurality of colored LEDs, each current of the at least one current having a variable time average flow; a user interface operable to facilitate a first user selection of a first spectral output from the plurality of spectral outputs; and a controller in electrical communication with said user interface and said LED light source to control the variable time average flow of each current flowing through said plurality of colored LEDs as a function of the first spectral output, wherein said user interface includes: a graphical user interface operable to display a chromaticity diagram encompassing a plurality of color points, each color point corresponding to one of the plurality of spectral outputs; and a touch screen operable to facilitate the first user selection of a first color point corresponding to the first spectral output.