A lighting assembly to be primarily used in an agricultural setting to illuminate farm animals with different colors of lighting. The assembly has a circuit for emitting light with different colored light emitting diodes that are arranged in networks of LEDs. The second and third networks are arranged in parallel to a first network of LED forming three separate current paths for lighting the LEDs. Each path has controllable impedance element arranged in series with the network of LED in that particular path and is controlled by a dynamic impedance control element that is coupled to the controllable impedance element to direct current through the individual paths of the circuit.