Lighting distributor Acuity Brands Inc. (NYSE: AYI), Atlanta, GA, reported sales for the second quarter of $832.1 million, a 3.4 percent increase compared to the same period a year earlier. Profit increased 44 percent to $96.9 million.For the first six months, sales were $1.7 billion, an increase of 1.1 percent compared to the prior-year period. Profit increased 13 percent to $168.4 million.