Patent ID: 6897624

Claim:
A method of providing a light-based indicator system for indicating a condition of an item, comprising: providing an illumination system for providing illumination suitable for conveying information and capable of receiving input from an information system, the illumination system comprising (i) a first LED adapted to produce first light having a first spectrum, and (ii) a second LED adapted to produce second light having a second spectrum, the first spectrum being different than the second spectrum, and the first LED and second LED being arranged to permit combining of the first light and the second light; and providing an information system for providing input to the illumination system; wherein the information system provides information about the item and the illumination system is controlled to provide at least three different colors of illumination that indicate the information, wherein the information system stores first information for controlling illumination prior to an item being displayed for retail purposes and second information for controlling illumination when the item is being displayed for retail purposes.