Refurbished 600-1000w Digital Ballast Special ⋆ HTG Supply Hydroponics & Grow Lights
Quantum 600W Digital Ballast, 120/240V Dimmable
220 240V Digital 600W Ballasts for Garden Planter Grow Lights HPS MH Bulbs Electronic Dimmable|Ballasts| - AliExpress
LAZERLITE ELECTRONIC BALLAST 600 W - Agroponix: Online store for Growing, Gardening, Hydroponics, Aquaponics, Aeroponics, Holticulture, Fertilizers & more
VIVOSUN 600 Watt Dimmable Electronic Digital Ballast with Enhanced Internal Cooled Fan, 25% Less Heat Generated and 15% Longer Service Life
TOPHORT 600 Watt Ballast Digital Dimmable Electronic Ballast for HPS MH Grow Light Bulb Lamp (600W, Purple)