ERSI Energy Smart Lighting is committed to providing the highest quality and most rigorously tested commercial LED lighting for replacement or retrofit of outdated T-12, T-8, Metal Halide and High Pressure Sodium lighting. Working directly with the manufacturers, we can offer the lowest possible pricing and provide the quickest Return on Investment (ROI) for LED upgrades. The LED’s are confidently backed by the best manufacturers’ warranties in the industry of up to 10 years.