Osram PlantaStar 600W HPS lamp The Osram PlantaStar 600W 240V HPS lamp is tailored specifically for horticulture, particularly indoor grow areas. With a spectral range around 2000°K in the red region it is perfectly suited for the flowering phase. In contrast to conventional HPS lamps Plantastar lamps possess a broader light spectrum that results in shorter production times, healthier plants and improved CO2 assimilation. For optimal outcomes it is recommended to replace the bulbs every 9-12 months. Features: Designed to match the photosynthesis absorption spectrum Accelerates and enhances flower blossom quality Consistent photon stream High light output, up to 141 lm/W Durable, shock-resistant construction with an elastic housing for the burner Corrosion-resistant socket suitable for use in a humid environment.