600W Ballast for HPS and MH Lamps – A-Grade Hydroponics
Lumatek electronic dimmable Ballasts
LUMATEK BALLAST 250 W WITH POWER CONTROL - Agroponix: Online store for Growing, Gardening, Hydroponics, Aquaponics, Aeroponics, Holticulture, Fertilizers & more
Lumatek 600 Watt Dimmable Digital Ballast 120/240 Volt Model LK600 Hps/mh for sale online | eBay