The linear fluorescent lamp index continued a downward trend, T5, T8, and T12 lamps all posted a year-over-year decrease for 4Q 2017, compared to 4Q 2016, of 17.1 percent, 19.8 percent, and 31.0 percent, respectively. The index showed mixed results for quarter-over-quarter comparisons with T5 posting a small 0.8 percent increase in Q4 2017 compared to Q3 2017. T8 and T12 continued a quarter-over-quarter trend of decreasing by declining 4.2 and 15.3 percent, respectively.
NEMA/BIS has added T-LED shipments to the market penetration graph to begin tracking their impact on the market. When more historical data is available T-LED shipments will be added to the index. In 4Q 2017 T-LEDs accounted for 23.1 percent of the florescent lamp shipments. T8 lamps accounted for 57.1 percent of 4Q2017 shipments while T5 and T12 lamps claimed 8.5 and 11.4 percent, respectively.
Director, Statistical Operations