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Fluorescent Aquarium

Oscar — Sat, 15 Jan 2011 00:38:01 +0000

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Fluorescent Aquarium

Freshwater Aquarium Lighting: Brightening Colorful Marine Life:

Knowing the Types of Lighting Used in Freshwater Aquariums
Several different types of lighting are already available for fish tanks. Depending on the need for an artificial lighting and your aquarium specifications, you might need a specific type of lighting for your fish tank.

Incandescent bulbs are generally regarded as too ineffective for freshwater aquarium lighting. They use up energy far too high compared to their luminal output, and produce too much heat to make them suitable lighting for the inside of an aquarium. They can probably have some use for very simple and crude aquariums such as small glass bowls, but otherwise, you have to choose something better than these.

Fluorescent lighting is the standard de facto type of freshwater aquarium lighting that you can use for your fish tanks. It is relatively cheap and easy to find, plus it has a considerably high luminosity despite its lowered energy consumption. There are several types of fluorescent lamps that you can use for your aquarium, including the new generation compact fluorescent lamps that offer intense lighting capabilities of very high output (VHO) fluorescent bulbs without their short life span.

Metal halide lamps are considered to be upgraded incandescent bulbs in terms of their similarity in shape and lighting function, but their lighting capabilities are incomparable to the ole and crude incandescent bulbs. Their luminosity is so intense that they can even simulate the sun’s bright yellow light, and are perfect for replicating actual marine habitat sceneries.

Determining the Right Type of Lighting to Use
Knowing what the right light source to use would require you to answer several questions about the general features and characteristics of marine life in your aquarium, as well as the specifications of the fish tank itself. If your fish tank has a relatively deeper water level than the average aquarium, then you may choose a light source that is brighter and probably more focused, in order to keep the light’s luminosity as it goes deeper into your aquarium.

If your aquarium only has fish inside it, then you may just opt for low watt lighting from any effective light source. Don’t worry: you only need to replace it once in a while. Do note, however, that the wattage should be at around 2-3 watts per tank gallon.

For fish tanks with live plants, it is generally desirable to have lighting with a minimum wattage of 4 watts per tank gallon. It’s generally better if you can intensify the lighting, as marine plant life thrives better this way, but there are some kinds of plants that would need specialized lighting for them to live properly, so it’s still recommended to do your own research.

Ways to install Artificial Lighting Effectively
Hobbyists just usually place the bulb at a general area overhead to scatter the light evenly across the fish tank. However, if you have live plants inside the aquarium, then it’s recommended that you concentrate that light towards these plants, so that they can grow properly. Additionally, you should go further than just putting the light there and turning it on until the Light Bulb wears off. Hobbyists can create effects that can simulate day and night conditions using artificial lighting.

Marine life can get stressed quickly if they are subjected to light for a time longer than the light of the sun in a day would usually take. Likewise, they also get irritated easily when they receive less light that they should have taken in that day. So, in simulating the effects of day and night on a fish tank, not only are you able to get that realistic feel of natural marine life, but you can also make the fish and plants inside the aquarium feel at home, just as if they were living in their natural habitat.

About the Author

Sandra Gaffney is a freshwater aquarium expert. For more great tips on
freshwater aquarium
lighting, visit

http://www.myfreshwateraquariumsecrets.com/

Fluorescent Jellyfish at Mystic Aquarium

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Maker Aquarium

Oscar — Wed, 06 Oct 2010 21:05:06 +0000

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Maker Aquarium

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Magnetic Drive

Oscar — Sat, 02 Oct 2010 08:43:10 +0000

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Magnetic Drive

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Pcs Aquarium

Oscar — Wed, 15 Sep 2010 16:02:56 +0000

Account limit of 2000 requests per hour exceeded.

Pcs Aquarium

Japon Akvaryumum 29.11.2009

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Power Supply

Oscar — Sun, 27 Jun 2010 00:06:45 +0000

Account limit of 2000 requests per hour exceeded.

Power Supply

Choosing the Right Dc Power Supply for Your Application

The DC Power Supply is a rather fundamental electronic device, however there are hundreds of DC Power Supply products on the market from dozen of manufacturers. Narrowing down the best product for your application and budget can be a daunting task. This article addresses DC Power Supply differentiators, functions and the applications they are best suited for. The article's focus is DC Power Supplies used by engineers, manufacturers, quality professionals and electronic hobbyists for the purposes of R&D, manufacturing and testing.

Power Supplies can range in price from $50 to $20,000 and the cost is often directly proportional to the amount of power the device outputs. The primary function of a power supply is to regulate output voltage and current. It takes an input power and regulates the output power as to enforce a constant voltage and current. In the case of DC Power Supplies, the input power is converted from alternating current (AC) to direct current (DC). There are two basic types of regulated DC Power Supplies: Linear and Switching.

Linear power supplies can never output a higher voltage than the input source. In theory, a linear power supply that is driven by typical 110V wall outlet could only output 110V, assuming the device were 100% efficient. Realistically, no power supply is 100% efficient because power conversion always results in energy loss, usually in the form of heat dissipation. Therefore, linear power supplies usually output voltage that is significantly less than the input.

Switching power supplies can step-up, step-down or invert the input voltage. Switching power supplies are usually larger, noisier and more expensive than their linear counterparts, however, switching power supplies are typically more efficient.

Choosing the right DC power supply for your application requires definition of some basic design specifications: voltage range, current range, number of outputs, power cleanliness (known as "ripple") and programmability. In general, the higher the output voltage and the lower the ripple, the more expensive the DC Power Supply. Multiple outputs and programmability features will also add to the cost.

The least expensive DC Power Supplies are ideal for electronics hobbyists and basic electro-mechanical applications where only raw power is required. It is likely that the devices being powered in these applications already have power-conditioning features that eliminate the need for precision input power. Low power, single output, DC power supplies range in price from $50 to $200.

Mid-range power supplies are best suited for non-critical, laboratory projects involving more advanced electro-mechanical applications or basic board-level testing. Mid-range power supplies might have multiple outputs, higher power ratings, lower ripple and precision, digital metering (+/- .001V, +/- .01A). Mid-range DC power supplies can be linear or switching and could range in price from $200 to $1,000.

High-end applications requiring high output voltage, advanced programmability (GPIB PC Interfaces), numerous outputs and very low ripple should budget in excess of $1,000 for their DC power supply. Many laboratory, R&D and testing applications could easily spend $5,000 to $10,000 per power supply.

This article has introduced some basic features and applications of DC Power Supplies. Before making your final purchase, be sure to consult the manufacturer and thoroughly understand all the specifications of a particular product. Choosing the best and most economical DC Power Supply for your application does not have to be a complex and time-consuming task. By identifying your design parameters, you will quickly narrow down product selection to a niche class of products from only a few manufacturers.

About the Author

Robert Preville is the President and CEO of Global Test Supply, LLC, a distributor of test and measurement equipment, and welcomes question from those looking for a DC Power Supply

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