Ballasts

An HID (High Intensity Discharge) ballast is a remote piece of equipment that connects between the electrical outlet and your grow light reflector. The ballast starts and controls the flow of power to the grow light lamps within the reflector.

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When you want reliable quality, a magnetic Sun System Crop Master 600W HPS ballast is a good choice for years of trouble-free use.
The Sun System Hardcore switchable 1000-watt 120/240-volt ballast is compact in size and runs cool.
$199.95 - $299.95
HORTILUX Gold Series Ballasts are worth every penny. They help your grow lamps last longer and burn brighter than a regular disposable ballasts.
$209.95 - $259.95
When you say "grow lights" you mean Hydrofarm, and Hydrofarm grow lights mean business. Hydrofarm has been perfecting HID ballast design since 1977. The Hydrofarm Powerhouse ballast has evolved into one of the most durable brands on the market today.
Hydrofarm's Xtrasun ballasts give you reliable service at an affordable price.
Use the Lightspeed Digital 1000w Ballast to save you HID bulbs. Dim the power to 750 of 600 watts and switch from 120 to 240 volts just by changing out the power cord!
Hydrofarm Phantom Digital Ballasts feature cool silent operation, lightweight design, and the maximum lumen output available.
Hydrofarm Phantom Digital Ballasts feature cool silent operation, lightweight design, and the maximum lumen output available.
Hydrofarm's Phantom II Digital 1000W Ballast is a game changer. It features a 32 bit processor that allows it to accurately tell you remaining bulb life, runs smart alert technology, and prevents damage from unexpected power outages.
$214.95
Save 20%
The Quantum Series digital ballast lets you adjust power settings with the twist of a knob! You can run it on 120V or 240V simply by changing power cords, both of which are included. As with all digital ballasts you can burn both HPS and MH bulbs.
$134.95
Save 16%
The Quantum Series digital ballast lets you adjust power settings with the twist of a knob! You can run it on 120V or 240V simply by changing power cords, both of which are included. As with all digital ballasts you can burn both HPS and MH bulbs.
$149.95
Save 18%
The Quantum Series digital ballast lets you adjust power settings with the twist of a knob! You can run it on 120V or 240V simply by changing power cords, both of which are included. As with all digital ballasts you can burn both HPS and MH bulbs.
The Sun System Harvest Pro Ballast allows you to easily switch between 120 and 240 volts of power. The new dual universal lamp cord receptacle means you can use any brand reflector your want!
If you are looking for an economical ballast, the 1000W Sunleaves Simple Two-way Ballast is a good choice.
The Sunleaves 1000W Two-way ballast features a common power outlet with 120/240-volt dual-voltage capabilities.
The Sunleaves 400W Two-way ballast powers either high pressure sodium (HPS) or metal halide (MH) lamps.