The ROI-E420 LED Grow LightVeg Footprint: 4 X 4 Flower Footprint: 3.5 X 3.5Watts: 420WSpectrum: FullWarranty: 5 YearsThe ROI-E420 achieves the ideal blend of energy efficiency and performance.Growers Choice and TSL Horti Tech collaborated on this product, which is based on the ROI-E680, one of the best LED Grow Lights on the market. The ROI-E420 full-spectrum, compact horticultural LED fixture is now available. This LED, which uses Growers Choices proven 3K full PAR spectrum, is ideal for professional growers and grow hobbyists who need