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

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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.

15 Reviews

stingray from Torrance, CA UNITED STATES

07/09/2015

Experience Level: Expert

sharp

Nice color, cool, sharp, clear. I like. Tip: I couldn't get them in without greasing the contacts.

4 out of 4 found this review helpful

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JOHN SMITH from BROADALBIN, NY UNITED STATES

07/30/2014

Experience Level: Intermediate

This light Rocks

The old bulb burned out, so I purchased this one to replace it. Works as expected!

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GIARSUN KUNG from SOUTH LAKE TAHOE, CA UNITED ST

04/18/2013

Experience Level: Expert

Horrible!

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.

0 out of 2 found this review helpful

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GUY VITALE from SOUTHGATE, MI UNITED STATES

03/07/2013

Experience Level: Intermediate

Great Light

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.

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CARL PETERSON from SAN LEANDRO, CA UNITED STATES

08/12/2012

Experience Level: Expert

Excellent

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 want color and growth.

1 out of 1 found this review helpful

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JESUS GUZMAN GONZALEZ from DORAL, FL UNITED STATES

02/22/2012

Experience Level: Intermediate

comments

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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TODD from RIVER OAKS, TX UNITED STATES

10/09/2011

Experience Level: Intermediate

I got the good blues now

I put this in the day it came in. So far a like the blue tint of this light. It came well packed, which is maybe something people forget about, but it's important when it comes to this kind of product. I can't really say much about how much my corals like it as of yet.

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MARTIN J BUTCHER from Parkville, MD UNITED STATES

09/11/2011

Experience Level: Intermediate

Hamilton 20k bulb

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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Tammy from RENO, NV UNITED STATES

05/03/2011

Experience Level: Expert

Nice bulb

I used this bulb to replace an AquaMaxx that burned out on me in a matter of weeks. The Hamilton is a nice blue, but not quite as bright as the AquaMaxx. It certainly is lasting much longer, though! It is more blue than white; it appears closer to a 20,000K than a 10,000k. The colors of the coral are really brought out by this light, especially the greens and purples, but I was hoping for a light more as advertised "crisp white with a blue tint". The coral looks good and grows well under it which is what counts, though.

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JAMES RENAUD from OGDENSBURG, NY UNITED STATES

02/07/2011

Experience Level: Intermediate

250 Watt 14000K HQI

I am not really impressed with this bulb due to the weak ceramic base on the sides. I inserted it into my reflector and without to much preasure the top portion of one side broke off. Not that this reflects on the bulb performance, it works great. It could be beefed up a little on the sides. Overall the 14000k color is stunning and the bulb really does work great. Just be careful not to press to hard.

3 out of 3 found this review helpful

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