| Lighting Science Group Showcases Pioneering LED Infrastructure Products at LIGHTFAIR
 
 Company Demonstrates High Output, Long Life Roadmaster Street Light with Best
 Return on Investment in the Industry
 
 SATELLITE BEACH, Fla., May 18, 2011 /PRNewswire via COMTEX/ -- Redefining
 lighting in America's public spaces--Lighting Science Group (LSCG) this week is
 showcasing a full line of advanced infrastructure products at LIGHTFAIR
 International. The company's world-class team of scientists and engineers has
 pushed the boundaries of what was once thought possible in lighting to deliver
 LED infrastructure products that marry architectural form with energy efficiency,
 long life and excellent light distribution.
 
 "With rising energy costs across world, businesses, cities, communities, and
 schools are looking for ways save energy--Lighting Science Group's LED
 infrastructure products are an obvious solution," said Jim Haworth, chief
 executive officer of Lighting Science Group Corporation. "Our products will
 improve both the environment and the bottom line by delivering more than a 40%
 energy savings over traditional lighting products while dramatically reducing
 maintenance costs. It's no coincidence that Washington, D.C., Salt Lake City,
 Mexico City, Dallas, and Sydney, Australia, have chosen our products--they are
 some of the most advanced, reliable, and affordable in the world."
 
 Lighting Science Group's new high performance Roadmaster street light has
 integrated the driver directly into the modular LED panel, dramatically reducing
 the necessary componentry inside the luminaire improving both affordability and
 reliability for LED solutions in the street light market. The street light
 delivers an energy savings of more that 40% over traditional 100 watt HPS
 cobraheads and is available with multiple control offerings.
 
 Adding to the company's Prolific Series, which are lining streets in Mexico City,
 Salt Lake City, and soon in Washington, D.C. among others, the company has now
 made available the DBR model that replaces 250-400 watt HID systems with a
 typical energy savings of over 40%. The Prolific Series provides more uniform
 light distribution, increase light levels, and should save buyers thousands of
 dollars each year in energy and maintenance costs.
 
 With flexible modular optical design and light output options exceeding 30,000
 lumens, Lighting Science Group's C2D LED luminaires are the smart choice for
 efficiently and affordably lighting parking garages and lots, pathways,
 sidewalks, building exteriors, warehouses and manufacturing facilities with
 energy savings exceeding 50% over traditional lighting products. The C2D lowbay
 (optimized for parking garages) is available now and five other platforms (area,
 flood, wallpack, post top, and highbay) will be available this summer.
 
 The company's new IHB Series breaks the LED light output barrier for industrial
 highbay applications and is IP65 Rated, making it ideal for cold storage and
 other complex environment applications. The IHB Series replaces 250-400 watt HID
 highbays and with its optional occupancy sensor it can provide energy savings far
 in excess of 50% over traditional lighting products.
 
 A modern approach with a classic twist, Lighting Science Group's Traditional
 series of LED luminaires are available in an acorn or lantern forms. These
 luminaires seamlessly integrate with the existing infrastructure in a wide range
 of residential and commercial applications--providing energy savings of over 50%
 compared to traditional lighting sources. Designed to maintain a timeless
 aesthetic, our Traditional family of luminaires are fitted with a robust thermal
 management system to maximize LED life and are virtually maintenance free.
 
 "This latest product offering further demonstrates Lighting Science Group's
 leadership in bringing advanced, yet affordable, LED lighting solutions to market
 at a speed unmatched by our competition," added Haworth.
 
 All of the company's new infrastructure products will be available this summer.
 For more information about Lighting Science Group's LED lighting solutions, visit
 lsgc.com or drop by booth # 3301 at LIGHTFAIR International in
 Philadelphia, May 17-19.
 
 About Lighting Science Group
 
 Lighting Science Group Corporation (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
 Middelburg, 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 lsgc.com.
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