March 16, 2009

Cree Launches LED Product Characterization Tool

Simplifies and Accelerates LED System Design with Lighting-Class Cree LEDs
DURHAM, N.C. -- Cree, Inc. (Nasdaq: CREE), a market leader in LED lighting, launched the Product Characterization Tool, an interactive LED design tool that simplifies the task of translating nominal LED performance to real-world conditions.

The online tool, accessible via www.cree.com, allows users to easily characterize any XLamp® LED over a wide range of operating conditions, including drive current, flux bin, price and junction temperature. It also calculates metrics such as lumen output, lumens per watt, lumens per dollar and more.

Cree’s Product Characterization Tool (PCT) introduces advanced functionality not commercially offered by any other LED supplier. PCT can perform simple LED system design based on a target total lumen output, calculating parameters such as number of LEDs required and total system efficacy. The calculated system parameters take into account electrical, optical and thermal losses associated with LED system performance. In addition, PCT allows users to compare up to three different XLamp LED configurations at once, empowering customers to best choose between the industry-leading XLamp XR, MC and XP package families.

“The Product Characterization Tool acts like an interactive data sheet, giving users a more intuitive way to design LED systems using XLamp LEDs,” said Paul Thieken, Cree, marketing director for LED components. “Determining even basic LED system parameters like efficacy with only data sheet graphs and characteristics used to be a time-consuming process. Cree is moving the LED lighting industry forward by simplifying the process to just a few clicks of the mouse.”

More information, including login instructions for the Product Characterization Tool, can be found at www.cree.com/pct.

About Cree
Cree is leading the LED lighting revolution and setting the stage to obsolete the incandescent light bulb through the use of energy-efficient, environmentally friendly LED lighting. Cree is a market-leading innovator of lighting-class LEDs, LED lighting solutions, and semiconductor solutions for wireless and power applications.

Cree’s product families include recessed LED down lights, blue and green LED chips, high-brightness LEDs, lighting-class power LEDs, power-switching devices and radio-frequency/wireless devices. Cree solutions are driving improvements in applications such as general illumination, backlighting, electronic signs and signals, variable-speed motors, and wireless communications.

For additional product and company information, please refer to www.cree.com

This press release contains forward-looking statements involving risks and uncertainties, both known and unknown, that may cause actual results to differ materially from those indicated. Actual results may differ materially due to a number of factors, including customer acceptance of LED products; the rapid development of new technology and competing products that may impair demand or render Cree’s products obsolete; and other factors discussed in Cree’s filings with the Securities and Exchange Commission, including its report on Form 10-K for the year ended June 29, 2008, and subsequent filings.