Hydrofarm SG Lite Ballast HPS for Plant Germination, 600-Watt : Amazon.ca: Patio, Lawn & Garden
Fusion | FUSION 1000W HPS TRI-TAP BALLAST
ACE Digital Ballast 600W - Grow King Hydroponics and Gardening Ltd
1000 Watt Ballast HPS/MH 120/240 - Grow King Hydroponics and Gardening Ltd
SunStream 1000 Watt HPS MH Electronic Ballast 120V/240V Dimmable for Hydroponic Grow Light System Kit ETL Listed - Optimal Spectrum for Indoor Plant Growth : Amazon.ca: Tools & Home Improvement
SunStream 600W Digital Dimmable Electronic Ballast for HPS/MH Grow Lights Fixture, 8 FT Power Cord Included - Efficient and Reliable Indoor Plant Growth : Amazon.ca: Tools & Home Improvement
BALLAST HIGH PRESSURE SODIUM 400W 120/277/347V | Guillevin
Plusrite BALU100-R-V120 HPS Ballast Kit [Price Match Guarantee] | Lumenco.ca
SunStream 1000W HPS MH Grow Light Bulb Digital Dimmable Ballast with A