Reef Brite

400W Metal Halide Digital Ballast

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Out of stock

Discontinued by Bulk Reef Supply
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The perfect ballast for Reef Brite Metal Halide Pendants and many others.

Compatible with all 400W metal halide lamps.

  • Digital
  • Lightweight
  • Connects directly to Reef Brite Reflectors

Digital ballasts are easily the best ballasts you can find for metal halide lamps. The digital processor inside of the ballast will automatically detect the type of bulb, and the start mode that will allow it to fire properly. Once the lamp is fired and running the ballast will also set the proper power output to the lamp for the best color and intensity. 



  • Input Voltage - 100-150 VAC
  • Input Current - 3.55A
  • Input Power - 412w
  • Power Factor - >.98%


What's Included?

1x 400W Digital Metal Halide Ballast


Note: 1-10V controller required for dimming capabilities.

More Information
UPC 819328013018
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Product Questions

Hi. Will the Reef Brite digital ballast work with a Cayman Sun reflector (400w)? Also, it says BRS recommends the luxcore ballasts for Cayman Sun reflectors. Why is that?
Thank you,
Question by: Scott Morton on Oct 28, 2017, 1:09 AM
Hi Scott, Thanks for reaching out!

The Reef Brite ballast will work with the Cayman sun reflector but will require a bit of rewiring since the plugs don't match up. We recommend the Luxcore because of its flexibility and because most Hamilton reflectors plug directly into it.
Answer by: Nick on Nov 17, 2017, 8:28 AM
When dimming a metal halide bulb using this ballast, how much is the color of the light affected?
Question by: WC on Oct 25, 2017, 2:22 AM
Hi there, great question!

The color of the bulb is likely to vary a bit as it is dimmed but that is going to depend entirely on the bulb. A Radium for instance will often burn whiter at higher wattage and bluer and lower wattage.
Answer by: Nick on Nov 16, 2017, 5:12 PM
How large, and especially, how heavy is this ballast?
Question by: WC on Oct 25, 2017, 2:21 AM
Hi there,

The manufacturer lists the measurements of the ballast at 15” x 8.75” x 4.5” and our system has the weight listed at 10lbs.
Answer by: Nick on Nov 16, 2017, 5:09 PM
Will this ballast work only with 400W bulbs, or is it smart enough to detect 250W bulbs and fire them up properly too?
Question by: WC on Oct 25, 2017, 2:19 AM
Hi There, great question!

I was not able to find any mention of this bulb supporting 250 watt bulbs so I would have to say that it will not detect the different bulb wattage. If you need an adjustable ballast check out the Luxcore which will handle both 250 and 400 watt bulbs.
Answer by: Nick on Nov 16, 2017, 4:51 PM