About Hydrofarm, Inc. Celebrated as the nation's oldest and largest manufacturer of hydroponic equipment and grow lights, Hydrofarm has made professional-grade equipment available to all since 1977. All grow lights and electric components are UL listed, unlike many competitor products, meaning you get years of reliable and safe use out your high-intensity lights. All products are covered by a one year warranty, at the least. In some cases Hydrofarm ensures the performance of their products for five years. Specifically designed to encourage vigorous growth. Increases flower sites and yields. Includes a built in organic wetting agent. Extreme serene can be used for exceptional results. Available in a variety of sizes.
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