... 2)long life,related energy saving. 3)It is used for street,square,port and so on. Characteristics and uses:High ... high efficacy,long life and related energy savings,is used for square,street,port.Complied with GB 13259-91.Discription Watts ... 16000 24000 50000 E26/E27 ED/T High Pressure Sodium Lamp for 70/150/250/400/1000W