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250 Watt 20000K Metal Halide Bulb - XM, Mogul Base
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250 Watt 20000K Metal Halide Bulb - XM, Mogul Base

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Item #: MB6813

MSRP: $89.95 Save: $20.96 (23%)
$68.99
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Proper lighting is a matter that should not be taken for granted when it comes to your aquarium. Though it is not a life or death situation if you do not have good lighting, however, it does have great impact not only in your enjo...
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250 Watt 20000K Metal Halide Bulb - XM, Mogul Base Information



Part #: XM250/B

Proper lighting is a matter that should not be taken for granted when it comes to your aquarium. Though it is not a life or death situation if you do not have good lighting, however, it does have great impact not only in your enjoyment with your aquarium but also in your fishes and plants health. Not all aquarium lighting is the same. Some aquarium light has wavelengths that look good on the outside and it does make you aquarium look clear but it really does not have any positive effects in the overall health of your aquarium.

It might not be a good choice in the long run as well. Also, many aquarium owners look at standard lightings intensity and find it very unnatural. So, if you are looking for intense lighting with excellent coloration and produce a very natural environment for your fishes and plant life, you should look into metal halide bulbs. Metal halide bulbs use mercury, along with metal halide component, to produce light that has strong blue feature. This blue tint makes the light look natural overall. It is great for coral reefs and other marine environment. Regardless of whether you keep corals, metal halide bulbs provide excellent aquarium lighting. For good metal halide bulb choice, try the 250 Watt 20000K Metal Halide Bulb - XM, Mogul Base from Pet Store. Using a tried and proven metal halide technology, this lighting option brings excellent coloration to your aquarium.

It looks complete natural, it is bright, clear and crisp, bringing your aquarium completely to life. Try 250 Watt 20000K Metal Halide Bulb - XM, Mogul Base for exceptional halide bulbs. This provides great lighting for coral reef aquariums and is good for up to 18 inches of aquarium depth.

250W 20000K METAL HALIDE SINGLE ENDED BULBXM

The XM 20000K metal halide bulb offers excellent coloration and average intensity. It is crisp-white with a strong blue tint. It brings out the fluorescent pigments in corals nicely. Fluorescent supplementation is usually not necessary, but can be used for added intensity and to simulate dawn and dusk. An electronic ballast, magnetic pulse-start ballast or magnetic HQI ballast is required to ignite this bulb. This bulb is white with a blue tint on a magnetic HQI ballast. It will burn more blue on an electronic ballast or pulse-start ballast. An excellent choice for  reef tanks 22"30" deep.

Common questions/problems concerning metal halide lamps:
  1. 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.
  2. 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.
  3. 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.
  4. 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.

Bulb Replacement Guide
Bulb Types Life of Bulb*
Normal Output Fluorescent 6-12 months
Very High Output (VHO) 6-12 months
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