NEMA's Electroindustry Business Confidence Index (EBCI) and CFL Lamp Index have retreated during the first half of 2011. The EBCI for current North American conditions fell to 45.5 in June, dropping below the 50-point mark for the first time since Oct. 2010.

The CFL Lamp Index dropped for the fourth consecutive quarter to 180.8 points (on a scale of 350), a 16.8 percent decline on a year-over-year basis. CFL's have given back market share gained over the past three years, decreasing to 21 percent, their lowest share since 2007. Incandescent lamps by contrast have remained strong with a 79 percent market share and a shipment increase of 6.4 percent, although with a reading of 57 points (on a scale of 350), the index remains the same as it was a year ago.