Demand for lighting equipment, as measured by NEMA’s Lighting Systems Shipments Index, increased by 2.2% year-over-year (y/y) and by 0.4% quarter-to-quarter during second quarter of 2015. The increase was driven by emergency lighting and fixtures which gained ground on a year-over-year basis while the ballast and lamp–large and miniature–components offset these gains with year-over-year declines.