An operating lamp includes a plurality of illumination elements arranged in discrete groups. The illumination elements include at least one white illumination element, adapted to emit a white light, and multiple colored illumination elements, each adapted to emit a non-white, colored light. The operating lamp also includes a controller in communication with the illumination elements, and one or more storage devices configured to communicate with the controller. Each of the storage devices is associated with one or more of the groups of illumination elements, and each of the storage devices contains a set of power values for each associated group. The controller is configured to control illumination of each group of illumination elements individually, based on the associated power values.