Inner-ignitor High Pressure Sodium Lamp,less power consumption,long life,golden yellow light can penetrate fog. 1.High luminous efficiency,less power consumption.2. CE, ISO, ROHS certification3.Universal burning position4.E40 base,Easy installation,suitable for American and relevant market5.Average life:24000 hours6.Application:Road,airport,wharf,station,industrial and mining enterprise lighting, ...