400 Watt 20000K Metal Halide Bulb - Hamilton, Double Ended

$69.95  

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MB6870

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Hamilton
  • Newly Redesigned! Deeper blue color & higher PAR!
  • Ideal Choice for Deeper Marine Life
  • Emits and Intense, Vibrant Actinic Blue light with high spikes in the 420nm range
  • Simulates sunlight at ocean depths of 12-25 feet
  • Promotes the development of photosynthetic plants, anemones and coral
  • Intensifies the natural fluorescence in fish, coral and marine life
  • Must be used with a 400W ANSI M135 magnetic ballast or 400 watt electronic ballast
NOTE: The bulb should be handled carefully: using soft gloves is a good idea to keep finger prints off bulb. This is during installation and replacement.

Bulb Replacement Guide
Bulb Types Life of Bulb*
Normal Output Fluorescent 6-12 months
Very High Output (VHO) 6-12 months
Power Compact (PC) 9-12 months
T5 High Output (T5HO) 9-18 months
Metal Halide 9-12 months
LED (non-moonlight) ~5 years (50,000 hours)
* Manufacturer Recommendations





Manufacturer Info

Hamilton Technology Aquarium Supplies
Hamilton Technology is the leading manufacturer of high quality aquarium lighting offering customers the widest selection of metal halide, compact fluorescent and VHO lighting available today at the lowest prices. Their mission is to offer state-of-the-art lighting that meets high standards of quality, innovation and value. Hamilton Technology has served the lighting needs of both the professional and the hobbyist aquarist for more than sixteen years and is considered by many to be the choice of experts.

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Overall, others give this:

  • 3.8

14 Reviewers (86%) would recommend this

Overall Rating:

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5  Star
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 3
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 1
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5
5.0
sharp

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REVIEW
Nice color, cool, sharp, clear. I like. Tip: I couldn't get them in without greasing the contacts.
  • 1
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5
5.0
This light Rocks

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REVIEW
The old bulb burned out, so I purchased this one to replace it. Works as expected!
  • 1
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5
5.0
Great Light

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REVIEW
This is my second Metal Halide system in the last 20 years of reefkeeping, by far the best lighting sytem I've had, beautiful crisp color, nice shimmer.
  • 1
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1
1.0
Horrible!

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REVIEW
This 250w burns like a 15K. It definitely burns white as apposed to blue. Since buying this bulb a week ago, I purchased a Coral Color 20k which outs out a nice blue-ish hue.
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5
5.0
Excellent

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REVIEW
I really like the look of this bulb. I have it over my reef tank and I get good coral growth - SPS has been doing great with this bulb - and nice color. It works best with actinics - right now I am using it in conjunction with 2 - T12 Super Actinic blue bulbs. It is a great combination if you wan...Read More
  • 1
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5
5.0
comments

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REVIEW
One of the main benefits that made me choose this bulb is its ability to penetrate aquariums deeper than 33 inches, like mine I have not put the bulbs work but I'm sure I made a good choice no more
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5
5.0
Hamilton 20k bulb

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REVIEW
Received my new Hamilton 20k DE HQI bulb.Sent on time and in perfect condition.I am very impressed with the Hamilton 20k bulb, very blue, and bright. Thanks to customer service for all of their expert assistance!
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Overall, others give this:

  • 3.8

14 Reviewers (86%) would recommend this

Overall Rating:

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5  Star
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3  Star
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2  Star
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