http://www.ebay.com/i/2-QUANTUM-600W-Watt-HPS-MH-Dimmable-Digital-Grow-Light-Lamp-Ballasts-QT600-/390707142631

(2) QUANTUM 600W Watt HPS & MH Dimmable Digital Grow Light Lamp Ballasts | QT600

Regular price $689.98 $194.00 Sale


The world of indoor gardening was changed forever with the introduction ofQuantum 600 Watt Ballast. TheQuantum 600 Watt Dimmable Electronic Ballast device has gone through rigorous testing in lab facilities that replicate the most extreme atmospheric conditions.