News Release

ATLANTA, Dec 16, 2010 (BUSINESS WIRE) --

Acuity Brands (NYSE: AYI), a market leader in innovative energy-efficient lighting and control solutions, has announced the latest addition to its expanding portfolio of LED outdoor products. The Lithonia Lighting(R) ALX(TM) line of outdoor LED area luminaires combine the classic ALX family appearance with innovative technology. The building-mounted ALXW LED luminaire is an ideal solution for a variety of applications, such as hospitality, offices, schools and retail spaces.

A one-for-one replacement for a fixture with a traditional HID lighting source, the ALXW meets or exceeds recommended IES lighting illuminance levels, producing as much light as a typical 250 watt metal halide (HID) fixture, while reducing energy and operating costs by as much as 62%. In addition, the ALXW delivers improved optical uniformity and color rendering, providing better illumination for architectural outdoor and pathway applications.

The ALXW's long-lasting LED light source is designed to provide up to 50,000 hours rated life at maximum operating temperature, equating to thirteen years of operation for a typical application. Even in the most demanding environments, the combination of superior thermal management and an IP67 (dust and water ingress protection) rated light engine contributes to the likelihood that the ALXW light source will achieve its rated life.

"High-quality lighting in public spaces delivers greater security and peace of mind," said Michael Naylor, Vice President and General Manager, Lithonia Lighting Outdoor Products. "The ALXW delivers the right amount of light as a building accent or directly to the pedestrian pathway. Combining the ALXW with Acuity Brands' ROAM(R) intelligent outdoor control system creates an integrated high-quality lighting, maintenance and network operations solution," added Naylor.

The ALXW outdoor luminaires are available nationally through Acuity Brands' sales representatives and authorized distributors. For more information on the ALX family of LED luminaires and Acuity Brands integrated outdoor lighting solutions, visit www.lithonia.com/ALX-LED, www.roamservices.net/index.html or www.facebook.com/LithoniaLighting.

About Acuity Brands

Acuity Brands, Inc. is a North American market leader and one of the world's leading providers of luminaires, lighting control systems and related products and services with fiscal year 2010 net sales of over $1.6 billion. The Company's lighting and system control product lines include Lithonia Lighting(R), Holophane(R), Peerless(R), Mark Architectural Lighting(TM), Hydrel(R), American Electric Lighting(R), Gotham(R), Carandini(R), RELOC(R), Antique Street Lamps(TM), Tersen(R), Renaissance Lighting(R), Winona Lighting(R), Synergy(R) Lighting Controls, Sensor Switch(R), Lighting Control & Design(TM), DTL(R) and ROAM(R). Headquartered in Atlanta, Georgia, Acuity Brands employs approximately 6,000 associates and has operations throughout North America, Europe and Asia.

SOURCE: Acuity Brands, Inc.

Acuity Brands, Inc.
Eric Snyder, 770-860-2833
eric.snyder@acuitybrands.com,
or
Greg Armstrong, 770-860-2606
greg.armstrong@acuitybrands.com