... , 1000W High in luminous efficiency, less in power consumption, long in life White-golden in ray of light and strong in fog-penetrating capacity ... sodium lamp: Outer flip is of no need Suitable for lighting in the places of road, airport, wharf, factory and ... color index Ra=15-30, color temperature 2, 000K Suitable for road, airport, wharf, station, factory ISO9001: 2000, CESampleUsageOur plant ...