1.Indoor grow light kit 2.Digital ballast,HPS bulb HPS 400W indoor grow light kit HPS 400W indoor grow light kit including:1.400W high quality HPS lamp2.400W dimmable electronic ballastSpecification400W high output HPS lamp1, High output, high luminescence efficiency.2, Expected Life Span: 24,000 hours3, Lumen: high lumens, the Max up to 125,000 lumens4, Color Temperature: 2,100K400W Dimmable ...