Press Release

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COURT AWARDS COLOR KINETICS COSTS AND ATTORNEYS' FEES IN CASE AGAINST SUPER VISION Boston, MA - May 12, 2006 - Color Kinetics Incorporated (NASDAQ: CLRK), a leading innovator of LED lighting systems and technologies, today announced that the United States District Court for the District of Massachusetts awarded Color Kinetics its costs and attorneys' fees in its successful patent litigation against Super Vision International, Inc., pending documentation of the costs and fees, which Color Kinetics estimates to be approximately $1.4 million. According to the Judge's ruling, "I conclude without hesitation that this case is 'exceptional,' and that Super Vision has perpetrated a 'gross injustice' by its egregious abuses of the discovery phase and vexatious litigation strategy. An award of attorneys' fees is appropriate to remedy the 'gross injustice' Color Kinetics has suffered at the hands of Super Vision's vexatious and bad faith litigation." "We are very pleased with the Court's decision, as the order provides satisfying vindication for Super Vision's behavior over the past four years," said Bill Sims, President and CEO, Color Kinetics. This decision follows a ruling in August 2005 whereby the Court granted all of Color Kinetics' motions for summary judgment against Super Vision relating to the patents. The Court found that all five of Color Kinetics' asserted patents are valid, that each of five Super Vision product lines infringe those patents, and that Color Kinetics did not engage in misconduct before the U.S. Patent and Trademark Office. The Court had earlier granted summary judgment in favor of Color Kinetics on tort claims raised by Super Vision. As a result of this decision Color Kinetics will now request the Court to issue a permanent injunction prohibiting further infringement of the asserted patents. Click here to view the Court order. About Color Kinetics Color Kinetics Incorporated (NASDAQ: CLRK) transforms environments through new, dynamic uses of light. Its award-winning lighting systems and technologies apply the benefits of LEDs as a highly efficient, long lasting, environmentally friendly, and inherently digital source of illumination - reinventing light itself as a highly controllable medium. Color Kinetics also enables widespread adoption of LED lighting through OEM and licensing partnerships in diverse markets. The company is headquartered in Boston, MA with offices in the UK, China, and Japan. More information is available at www.colorkinetics.com. "Safe Harbor" Statement under the Private Securities Litigation Reform Act of 1995: Statements in this press release regarding Color Kinetics Incorporated's business that are not historical facts are "forward-looking statements" within the meaning of the Private Securities Litigation Reform Act of 1995. Readers are cautioned that these statements involve risks and uncertainties, are only predictions and may differ materially from actual future events and results. For a discussion of such risks and uncertainties, see "Risk Factors" in the Company's Annual Report on Form 10-K for the Twelve Months Ended December 31, 2005, File Number 000-50798, and most recent 10-Q, each as filed with the Securities and Exchange Commission. Contact Info
Felicia Spagnoli: fspagnoli@colorkinetics.com Media Relations Color Kinetics Incorporated 781-418-9292	Justine Alonzo: jalonzo@colorkinetics.com Investor Relations Color Kinetics Incorporated 781-418-9272