Fusion Bright 400 Watt Dimmable Electronic Ballast — GrowLights Canada

TOPHORT 400 Watts Digital Dimmable Electronic Ballast for HPS MH Grow Light Bulb Lamp (400W, Blue) : Patio, Lawn & Garden

Grower Supplies Catalog

VIVOSUN 400 watt Dimmable Digital Ballast for HPS MH Grow Light, Soft Start Program & Stable Performance (Space Gray) : : Tools & Home Improvement

Quantum 400w Dimmable e-ballast – Grow It All

Quantum Dimmable Ballast - 400W – Mr. Fertilizer

T5 HO 2.0 4FT 4 Lamp LED Grow Light – Sun White Spectrum – Active Grow

Hydrofarm Quantum QT400 Dimmable Ballast, 400W, 400 W : Tools & Home Improvement

ballast 1000w in All Categories in Canada - Kijiji Canada

T5 HO 2.0 4FT 4 Lamp LED Grow Light – Sun White Spectrum – Active Grow

600 Watt Grow Light Parabolic Reflector HID Kit — GrowLights Canada

LED Grow Lights/Fusion PRO LED Systems — GrowLights Canada

Light Bulbs: Indoor & Outdoor Lightbulbs at Ace Hardware

Grow Lights — GrowLights Canada