Light sources are changing. Regulations and opportunities for improved energy efficiency are driving commercial users to new choices. In the past, the choice of commercial lighting technologies was mostly limited to incandescent bulbs, CWF-style fluorescent tubes, triphosphor fluorescent tubes, and various forms of natural or simulated daylight. Today, residential and commercial customers have far more options, with additional technologies being installed in a store near you. This presentation will review various current and emerging lighting technologies, our methods for assessing them, and the practical implications of using the technologies to view colored objects.