High Pressure Sodium Lamp of Inignitor:Characteristic: High in luminous effciency, less in power consumption, long in service life, white-golden in ray of light and strong in fogpenetrating capacity. Colour temperature 2K, without additional ignitor.Application: Suitable for lighting in the place of road, airport, station, factory and mine etc.Wattage: 70W/100/150W/250W/400WLuminous Flux: 3900lm/5600lm/9800lm/16900lm/30500lmAverage Life: 6000H/6000H/8000H/8000H/8000HBase: E27/E26 E40/E39Max diameter: 38mm/38mm/48mm/48mm/48mmMax length: 156mm/180mm/211mm/257mm/283mm.