400 Watt Ballasts



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Phantom Variable Watt Digital Ballast, 250w/400w, 120/240v



Phantom Variable Watt Digital Ballast, 250w/400w, 120/240v

The Phantom PHB2040 Digital Ballast was developed from our popular Phantom II ballast line. It retains all of the reliability and engineering superiority of the Phantom II models and adds 250W/400W switching capability as well as three-way output control, making it highly versatile. Output wattage is selected using a recessed switch on the rear panel.

Like the Phantom II ballasts, the PHB2040 is totally silent, energy efficient, reliable, and lightweight. Its industry-leading Smart Alert Technology utilizes a 32 MHz fully integrated microprocessor to keep your setup running smoothly.

The Phantom PHB2040 has built-in hot re-strike programming to protect the lamp and ballast in the event of a temporary loss of power. The ballast will not attempt to restart a hot lamp for at least 15 minutes.

  • Smart Alert Technology

  • High-precision microprocessor control

  • High efficiency

  • Totally silent operation

  • Versatile 250W/400W output

  • Multi-input voltage (120‒240V)

  • Ignition voltage control

  • Three-way dimming feature: Dim (85%), Standard (100%), and Boost (110%)

  • Intelligent lamp ignition and power control

  • LED indicators

  • Intelligent lamp detection

  • End-of-life lamp protection and indication

  • Current sense intelligent startup

  • Precision thermal controls alert the user to high heat and overheat conditions

  • Dual lamp receptacle—works with all common reflectors

  • Internal RF shielding

  • Generator ready

  • FCC-compliant

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Quantum Digital Dimmable Ballast, 400w



Quantum Series Lighting is now the paradigm of lighting technology. Quantum Horticulture analyzed the mistakes and failures made by others in their quest for digital lighting, and utilized that knowledge to bring us the best in high intensity illumination. The Quantum Series digital ballast has features not found with any other brand of ballast currently on the market. Every need of both the hobby and professional gardener has been taken into consideration when we were developing these ballasts.

One of the major factors that contributes to the purchase of digital lighting, is the increased power savings. The Quantum Series ballasts offers you a dimming switch that enables you to run your ballast at the strength YOU desire. This not only makes it easier to harden off young plants just being introduced to HID lighting, but also allows you to control your footprint and power usage as well. You can increase the power to your ballast as your garden grows and demands more light, and save yourself a substantial amount of money on your power bill over the length of your crop cycle.

Another key point of these ballasts' is they have no dedicated voltage. Switching between 120v and 240v is as easy as changing the power cords. Both, of course, are included with your ballast. There is no need to purchase any additional equipment or change any wiring. Heat has always been the enemy of any gardening situation. We have designed our ballast with a resin cased circuit board that has been placed in conjunction with a sealed bearing fan. This combines the best of both worlds with the end result being a ballast that runs 15% cooler than any other digital ballast available. As with all electronics, the cooler they run, the longer they will last. The Quantum Series Lighting is the only ballast that is FULLY compliant with Part 18 of FCC rules and regulations & UL Listed. Your new ballast can do the following:

  • Run at 100%, 75% or 50% power

  • Strike both Metal Halide and High Pressure Sodium Bulbs

  • Accepts 120v or 240v (Both cords included)

  • Allows 50 Hertz to 60 Hertz

  • Runs 15% cooler than other digital ballasts on the market

  • Has a Power Factor of 99.9%

  • The most stable output frequency of any ballast

  • Higher lumen output than magnetic ballasts

  • Light weight

  • 3 year no hassle warranty!

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