NEMA’s shipment indexes for T5 and T8 liner fluorescent lamps increased 2.1 and 15.1 percent in the fourth quarter of 2012 to reach 156.8 and 103.1, respectively. However, the quarterly gains were not able to offset decreases earlier in 2012. The index for T5 lamps posted an annual reading of 159, a decline of 10.7 [...]