NEMA’s incandescent lamps shipment index for Q3 2011 decreased 1.2% from the previous quarter, but was up 21.5% compared to the same period last year. The year-over-year percentage (y/y) change is the largest swing, in either direction, since 2008. Compact fluorescent lamp shipments registered a slight gain of 0.9% over Q2 2011. Yet, the index declined for the fourth consecutive y/y comparison, sinking 15.4%.
Shares of the two lamp types were essentially unchanged compared to the previous quarter. Incandescent lamps decreased 0.4 percentage points to 79.4%. Meanwhile, CFLs increased marginally to reach 20.6% of the combined incandescent–CFL lamp market.





![2610_LightNow_Archlight_Banner Ad_900x400 | LightNOW Dallas Market Center ArcLight Summit banner: Call for Speakers, June 22–23, 2027 — Apply Now (logo with colorful arc.”] ,](https://i0.wp.com/www.lightnowblog.com/wp-content/uploads/2026/10/2610_LightNow_Archlight_Banner-Ad_900x400-e1792264459229.png?fit=900%2C400&ssl=1)


You must be logged in to post a comment.