The Hortigro 600w High Pressure Sodium High Output (HPS HO) growing lamp is ideal for the flowering state of plant growth but will work great throughout the entire plant lifecycle. Use indoors or as supplemental light in a greenhouse. Our bulbs are made with the highest quality glass, gasses, and materials for longevity and performance. Make your lighting the least of your worries with the Hortigro brand of lighting products. Manufacturer warranty is voided when run over run at any wattage greater than 600.
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