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VIVOSUN 600 Watt Dimmable Electronic Digital Ballast with Enhanced Internal Cooled Fan, 25% Less Heat Generated and 15% Longer Service Life
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VIVOSUN 1000 watt Dimmable Digital Ballast for HPS MH Grow Light, UL Listed & Soft Start Program : Patio, Lawn & Garden - Amazon.com
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POWERSUN E-BALLAST FAN-COOLED 1000W HPS/MH 120/240V, Hydroponics Wholesale Portal | Holland Industry
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