1.High pressure sodium lamp 2.Watts:250W 3.Base:E40 4.Life time:15000H 5.Suitable places:stadium,airport,whart,factory etc High pressure sodium lampSpecification:Characteristic:High in luminous efficiency, long in service life,white-golden in ray of light and stronin fogpentrating capacity. Colour temperature 2000K.Application:Suitable for lighting the places of stadium,airport,whart,staion, ...