These power cords are compatible with all ballasts that feature Smart Volt power cords (like those found on most desktop computers). This includes Sun System 1, 6, & Hard Core, Harvest Pro, Galaxy, Lumatek and many other brands.
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Why? Everyone claims they have the lowest prices, best selection and are the most knowledgeable. But we guarantee it! We founded this company with over 28 years of hydroponic and indoor gardening experience. We opened up our hydroponic farm in 1996...