The Osram Plantastar lamp was developed specifically for applications in commercial horticulture. They enable plants to be intensively cultivated throughout the year. These lamps ensure optimum production processes thanks to their long life, long relamping intervals and low maintenance costs. Product benefits Long life, long relamping intervals, low maintenance costs Extremely constant luminous flux during the first 10,000 hours of operation. It is advisable to replace the lamps after this time or every two years. Solid, high impact construction for low failure rates No moving starting electrode, so no wear and tear . In stock now for immediate delivery.