Hydrofarm's Phantom Digital Ballast arrives on the market as the most rigorously tested ballast in the industry. The Phantom features silent operation, lightweight design, multiple placement options and the maximum lumen output around. We listened to your needs and learned.  Tri-mode, push-button dimmable feature gives you the light you need in your specific growing situation.

• Hot re-strike programming protects the lamp in the event of a power outage
• Dual resettable breakers - protects lamp and household circuits
• Only ballast on the market designed for vertical operation for coolest running and optimum grow space
• Drives the highest light output for maximum plant growth
• Universal reflector adaptor and 8 ft heavy duty cord included
• Unlike magnetic ballast, Phantom runs completely silent
• Triple surface aluminum fins - most efficient cooling in its class