High-pressure sodium lamps for open and closed luminaires. Product features: Average lifespan: 12,000 hours. Provides plants with light for photosynthesis. Photon flux: >90% after 12,000 hours. High-pressure sodium lamp specifically for greenhouse lighting. Product benefits: Shorter production times. Control of flowering. Areas of application: Greenhouses. Suitable for fruit growth by emitting light optimized for photosynthesis. Use only in suitable luminaires.