Application Suitable for seaport and airport, Bus station and public square etc 400W High Pressure Sodium Bulb with ... lifespan: 24,000 hours Applications:Exhibition hallIndustry lighting, stadium, gymnasium and parking area lightingFlood lighting for tunnels, Also widely used in ... ,any costomized design can be undertaken4.Exculsive designs,ideas and private info.of clients well be kept as top privacy ...