NEMA’s indexes for linear fluorescent lamp shipments increased during Q3 2011 compared to the previous quarter. T8 lamp shipments led the way with a 6.1 percent gain. Shipments of T5 and T12 lamps followed posting increases of 5.7 and 0.9 percent, respectively. Year-over-year performance showed double digit growth in T5s of 18.8 percent and 20.8 percent for T8s. The index for T12 lamps slipped nearly 10 percent compared to a year ago.
 
Market shares for each lamp type have remained stable over the previous year. Shares of T5, T8, and T12 lamps were unchanged at 7.6, 62.4, and 30.0 percent, respectively, during Q3 2011.