NEMA’s Lighting Systems Shipments Index, a measure of demand for lighting equipment, decreased 2.6% quarter-to-quarter while posting a 0.1 percent increase year-over-year during 2015Q4. Fixtures, emergency lighting, and miniature lamp, components of the index, gained ground on a year-over-year basis, while ballast and large lamp, components recorded year-over-year declines.
In a separate study, NEMA’s linear fluorescent lamp shipments indexes continued their year-over-year decline in 2015Q4. After declining for seven consecutive quarters, the index for T12 lamps posted a 4.2 quarter-over-quarter increase, but declined 17.4 percent from fourth quarter 2014. T8 and T5 shipments also continued to decline, decreasing by 13.4 and 9.3 percent, respectively, on a year-over-year basis.
T8 lamps accounted for a 72.4 percent share of fluorescent lamp shipments in 2015Q4, with T12 lamps claiming a 16.8 percent share and T5 lamps a 10.7 percent share.