... Suitable for seaport and airport, Bus station and public square etc 400W High Pressure Sodium Bulb with High Luminous Efficiency ... ,000 hours Applications:Exhibition hallIndustry lighting, stadium, gymnasium and parking area lightingFlood lighting for tunnels, Also widely used ... english3.OEM&ODM ,any costomized design can be undertaken4.Exculsive designs,ideas and private info.of clients well be ...