NEMA’s shipment indexes for high-intensity discharge (HID) lamps continued to decline during the fourth quarter of 2013, the company says.
Shipments of sodium vapor lamps fell 5.7 per cent on a seasonally-adjusted basis compared to the previous quarter. Also, metal halide lamps contracted for the seventh consecutive quarter declined 3.6 per cent on a quarterly basis.
As a result, the mercury vapor lamps index dipped 5.6 per cent. Calendar year 2013 showed decreases of 6.1 per cent and seven per cent for sodium vapor and metal halide lamps, respectively. Mercury vapor lamps shipments posted an annual decline of 8.9 per cent during 2013.
Market shares for sodium and mercury vapor lamps declined marginally to 32.3 per cent and four per cent, respectively. In contrast, metal halide lamps increased during the quarter reaching 63.7 per cent.
NEMA is the association of electrical equipment and medical imaging manufacturers, founded in 1926 and headquartered in Rosslyn, Virginia. Its 400-plus member companies manufacture a diverse set of products including power transmission and distribution equipment, lighting systems, factory automation and control systems, and medical diagnostic imaging systems. Total U.S. shipments for electroindustry products exceed $100 billion annually.