LUMALUX and LUMALUX ECO high pressure sodium lamps offer a reliable light source with high efficacy and long life. With up to 140 lumens per watt (lpw) initial efficacy and excellent lumen maintenance, these lamps deliver consistent light levels throughout their long lifetime. LUMALUX ECOLOGIC lamps have identical physical and electrical construction to standard LUMALUX lamps, but with reduced mercury content enabling them to pass the Federal TCLP test1 . The combined product offering builds a complete portfolio of the industry's most popular high pressure sodium lamp wattages and configurations.