Patent ID: 8441202

Claim:
An illumination apparatus comprising: a plurality of LEDs, the plurality of LEDs comprising at least one LED of a first color and at least one LED of a second color different from the first color; a control system connected to receive dimmer-modulated AC line voltage and control the plurality of LEDs, the control system configured to: operate in a default mode wherein changes in dimmer-modulated AC line voltage adjust a first characteristic of the plurality of LEDs until the dimmer-modulated AC line voltage manifests a mode change condition, the default mode comprises an intensity mode wherein the control system is configured to transform changes in the dimmer-modulated AC line voltage into changes in an overall intensity of light emitted by the LEDs; enter a selected mode upon determining that the dimmer-modulated AC line voltage manifests the mode change condition wherein changes in dimmer-modulated AC line voltage adjust a second characteristic of the plurality of LEDs and wherein the selected mode comprises a color mode wherein the control system is configured to transform changes in the dimmer-modulated AC line voltage into changes in a composite color of light emitted by the LEDs; and, enter a different mode after the dimmer-modulated AC line voltage remains unchanged for a first predetermined time period, wherein the different mode comprises a first fine tuning mode wherein the control system is configured to adjust the composite color of light emitted by the LEDs within a first fine tuning range which is narrower than a full adjustment range in the color mode.