SG 600W HPS Ballast, 120/240VGet more ballast for your buck with the SG ballast, which is light on price but heavy on features. Experience the power of a ballast straight out of Hydrofarms value line. This ballast is built to last with a patented design that allows electrical contact to happen only when a seal is achieved. The SG ballast offers a compact design, to save space in the grow room, and a water resistant seal to protect against misting and sprays. All SG ballasts also
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