First Low-Cost, High Output A19 60 and 40 Watt Equivalent Omnidirectional Bulbs and BR30/40 Bulbs Added to the Line

Leading the ultra-efficient lighting revolution—Lighting Science Group (OTCBB: LSCG) will roll out at LIGHTFAIR International an expanded line of low-cost, long-lasting DEFINITY LED bulbs.  The line now includes LED flood and spot lights as well as vanity lights and 60 and 40 watt equivalent omnidirectional bulbs in variety of colors.

The DEFINITY LED bulbs are approximately 75-80% more efficient than traditional bulbs, are dimmable, are “instant on”, and will last for decades. Independent tests show that the lumen (light) output of the bulbs is unrivaled–outperforming many comparable products by 25-30%.

“The DEFINITY LED line is simply brilliant—quality and energy savings at an affordable price,” said James Haworth, chief executive officer of Lighting Science Group. “They are the clear winners for those shopping for ultra-efficient and environmentally-friendly replacement bulbs.”

The new 60 watt equivalent DEFINITY LED bulb is a direct replacement for the most commonly used incandescent bulb in use in this country; over 425 million 60 watt incandescent bulbs are sold in the U.S. every year—making up approximately 40% of the bulb sales market. Furthermore, unlike compact fluorescent lamps (CFLs), Lighting Science Group’s LED bulbs contain no mercury, are completely recyclable and offer outstanding light quality.

Many of the DEFINITY LED bulbs have been ENERGY STAR approved. “We lead the industry in the number of ENERGY STAR approved LED bulbs—a true testament of the superior quality and performance of our LED products,” added Haworth.

For more information about Lighting Science Group’s LED lighting solutions, visit www.lsgc.com or drop by booth # 3301 at LIGHTFAIR International in Philadelphia, May 17-19, 2011.

About Lighting Science Group

Lighting Science Group Corporation (OTCBB: LSCG) designs, develops, manufactures and markets LED lighting solutions that are environmentally friendlier and more energy efficient than traditional lighting products.  Lighting Science Group offers retrofit LED lamps in form factors that match the form factor of traditional lamps or bulbs and LED luminaires for a range of applications including public and private infrastructure for both indoor and outdoor applications.  Lighting Science Group’s Advanced Projects Group business unit designs, develops and manufactures custom LED lighting solutions for architectural and artistic projects.  Lighting Science Group is headquartered in Satellite Beach, Florida; the Company’s European operations are based in Goes, The Netherlands; and, the Company has a sales office in Sydney, Australia.  Lighting Science Group employs approximately 600 workers building lighting products from domestic and imported parts. Lighting Science Group is a Pegasus Capital Advisors portfolio company. More information about Lighting Science Group is available at www.lsgc.com.