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NEMA’s Lighting Systems Index increased 1.1 percent on a quarter-to-quarter basis during the first quarter of 2010. On a year-over-year basis the index posted a similar increase of 1.2 percent, marking the first time since the second quarter of 2006 that the LSI has registered an appreciable gain compared to the same period a year ago. Three types of lighting systems (large lamps, emergency lighting equipment and fixtures) saw very modest declines in seasonally- and inflation-adjusted shipments, but these losses were more than offset by gains in miniature lamps and fluorescent ballasts. Although the LSI has increased in each of the last three quarters, the gains have been relatively modest and overall lighting equipment demand remained at a low level during the first quarter of 2010.