The Grow Pros AK800 is the preferred choice for 1:1 HPS replacement. The Grow Pros AK800 single-tier LED features higher efficiency with equal optical performance or higher than standard HPS grow lights. AK800 saves you more money within as little as 6-8 months when installed in optimal grow room conditions. The Grow Pros AK800 is long-lasting, easy-to-maintain, and better for long-term exponential growth of your plants and your business.