Acuity Brands  announced that its wholly-owned subsidiary, Acuity Brands Lighting, completed the previously announced acquisition of Distech Controls Inc., a leading provider of building automation and energy management solutions that allow for the seamless integration of lighting, HVAC, access control, closed circuit television, and related systems.  Acuity Brands Lighting acquired all of the outstanding capital stock of Distech Controls for approximately 318 million Canadian dollars.