GROW BIG BALLAST 1000W
Grow Big Premium Switchable Ballast comes pre-wired and ready to use. This ballast allows you the flexibility to easily change between your MH and HPS 1000W fixtures quickly and safely. Simply power down your set-up, flip the switch located on the end plate, change your fixture and power up! Use either the 240v cord provided with the ballast or a 120v power cord (available separately) and plug into the end plate. No additional wiring required!