NEMA’s incandescent lamp shipments index showed a precipitous decline of 40.1 percent compared to the same period last year. Moreover, the index reached a value of 49.3, a new record low for the series. On an annual basis, incandescent lamp shipments during 2012 were down 18.3 percent – erasing a 16.4 percent gain for 2011. Compact fluorescent (CFL) lamp shipments dipped slightly during 2012 to an index value of 176, a change of 0.3 percent versus 2011. Meanwhile, halogen A-line lamps continued to make inroads as a viable alternative lamp source increasing by 88.3 percent over last year.
 
Halogen A-line lamps more than doubled their share of the combined incandescent-CFL-halogen A-line market during 2012, climbing to 3.8 percent. The market share of CFLs increased 2.8 percentage points over last year to 22.8 percent. Traditional A-line incandescent lamps declined to a share of 74 percent, matching their lowest level since 2010.