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Home » Saltwater Aquarium Supplies  » Lighting  » Light Bulbs  » Metal Halide  » Double Ended  » 250 Watt  »  250 Watt 20000K Metal Halide Bulb - Aqualine AB, Double Ended
250 Watt 20000K Metal Halide Bulb - Aqualine AB,  Double Ended

250 Watt 20000K Metal Halide Bulb - Aqualine AB, Double Ended

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MB6863
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MSRP: $158.99
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250 Watt 20000K Metal Halide Bulb - Aqualine AB, Double Ended Information




The aqualine 20000 blue lamp emits light strongly in the blue end of the spectrum. The use of this “actinic” lamp enhances the fluorescent blue and green colors of many corals. The lamp should be used in combination with aqualine 10000. This combination gives the aquarium a beautiful bluish hue.

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: Double ended bulbs should always be used with the UV shield (supplied with most pendants). You and your corals can suffer from excess UV radiation otherwise. The bulb should be handled carefully as well since it has no outer glass casing. 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

Aqua Medic Aquarium Supplies
Aqua Medic has been a prominent name in the aquarium industry for over 22 years. The company was founded in Bissendorf, Germany and opened a North America distribution center in 2002 to better serve hobbyists in the United States and Canada. As the company continually introduces new products from the European market into North America they also provide excellent service for all of their products and carries a wide variety of replacements parts. Their open relationship with customers welcomes suggestions and user feedback. We carry a variety of Aqua Medic aquarium supplies including pumps, protein skimmers, light fixtures and accessories.
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