250 Watt 6500K Metal Halide Bulb - Iwasaki, Mogul Base (Saltwater Aquarium Supplies > Lighting > Bulbs > Metal Halide > Single Ended

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250 Watt 6500K Metal Halide Bulb - Iwasaki, Mogul Base

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Item Code: MB6211

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250W 6500K MH BULB—IWASAKI

The Iwasaki 6500K metal halide bulb is a full-spectrum Daylight bulb. It offers excellent light intensity, but will be slight yellow-green in coloration. A great bulb to achieve fast growth. This bulb will work with a standard magnetic ballast, magnetic EYE ballast or electronic ballast.

This 250W bulb is great for reef tanks 22"–30" deep.

Please click here for more information on how the different Kelvin ratings appear and more information on metal halide bulbs.

As a general rule of thumb, use one metal halide bulb for 24" of tank length. Most of the Metal Halide bulbs in the same wattage format can be interchanged. However, please contact us to make sure. Metal Halide bulbs are one the most difficult aspects of the hobby to recommend. Most of the information here is general.

Common questions/problems concerning metal halide lamps:

Metal halide lamps of the same kind are different colors?
Metal halide lamps operate by passing an electric arc through an arc tube that excites particles in the arc tube. When the metal particles reach an excited state they emit energy in the form of visible light. It takes 100 hours of operation before the metal particles stabilize and become a consistent color. All metal halides require 100 hours of operation before color and light output stabilize. All metal halides inherently have a slight color variation between individual lamps.
The metal halide lamp fires and then either burns dull or the arc extinguishes?
Usually the ballast and lamp are not receiving enough power. Metal halides pull a high current. Usually the problem is either there is too great a load on the circuit or the extension cords are of a small wire size and can`t handle the power needed by the ballast. Use only heavy duty extension cords and try running a ballast off a circuit from another part of the house.
Do I need a cover shield between the lamp and the aquarium?
Metal halide lamps produce a large amount of UV and also have a potential of exploding. The single ended metal halide lamps have an outer jacket which eliminates most of the UV. However, they have an inherent risk of exploding and UL requires metal halide lamps to be enclosed. On double ended lamps there is no UV shield. Double ended lamps must have a glass shield or major eye injuries including blindness may occur.
Can I operate a ballast and lamp together which are designed for different wattages?
Each wattage lamp and ballast are designed together for optimal performance and safety. If you over drive the lamp it may explode and shorten the life of the ballast and lamps. If you under drive the lamp it will also shorten the life of both components and also may explode. Do not mix different type wattages of lamps and ballasts.

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. The average life expectancy of this bulb is 12-18 months.

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1 of 2 people found the following review helpful:

Excellent!

metal halide bulb by KEN MANDELBAUM

Experience Level: Expert

Posted on 9/20/2007 from EAST ROCKAWAY, NY UNITED STATE

Comments: if your looking for a great and strong bulb with a wide spectrum of light then this is the bulb for you . make sure it is however properly ventilated they do get hot after awhile.
Yes, I would recommend this product to my friends.

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0 of 0 people found the following review helpful:

Excellent!

good by JAMIE MARTIN

Experience Level: Expert

Posted on 3/25/2008 from BRICK, NJ UNITED STATES

Comments: a good lamp but a little too yellow for me switched to the 10K
Yes, I would recommend this product to my friends.

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