SunStream 1000W HPS MH Grow Light Bulb Digital Dimmable Ballast with A
SunStream 1000 Watt Dimmable Digital Electronic Ballast for MH and HPS Grow Light ETL Listed and 8 FT Power Cord (Full Version) : Amazon.ca: Tools & Home Improvement
SunStream 1000 Watt Dimmable Electronic Ballast for Grow Lights MH/HPS