Shipments of traditional A-line incandescent lamps, as measured by the lamp shipment index published by the National Electrical Manufacturers Association (NEMA), Rossyln, Va., decreased for the third consecutive quarter in Q2 2013, reaching a low point for the series.

Second quarter activity showed a decline of 8.6% from the previous quarter. Moreover, the index fell by 20.6% on a year-over-year basis. Compact fluorescent lamps (CFLs), a popular substitute for A-line incandescent lamps, also posted a third consecutive quarterly decline during 2013Q2. The CFL index fell by 0.6% compared to Q1 2013 and 8.5% from the same period last year. Shipments of halogen A-line lamps remain robust, having registered a quarterly gain of 28.3%. Details