what are fluorescent light bulbs
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Why electric bulbs are not filled with air and which gas is present in them? A fluorescent lamp or a fluorescent tube is a low pressure mercury-vapor gas-discharge lamp that uses fluorescence to produce visible light. An electric current in the gas excites mercury vapor which produces short-wave ultraviolet light that then causes a phosphor coating on the inside of the bulb to glow.
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How do Fluorescent Lights Work? As humans cannot see UV light, there is one more step in the elaborate design of fluorescent bulbs. They key is in the phosphorous coating that lines the inner glass tube. When phosphor is exposed to UV light, it absorbs the energy and radiates it back out as visible light.
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Fluorescent lamp A fluorescent lamp converts electrical energy into useful light much more efficiently than incandescent lamps. The typical luminous efficacy of fluorescent lighting systems is 50–100 lumens per watt, several times the efficacy of incandescent bulbs with comparable light output. fluorescent lamp or a fluorescent tube is a low pressure mercury-vapor gas-discharge lamp that uses fluorescence to produce visible light. An electric current in the gas excites mercury vapor which produces short-wave ultraviolet light that then causes a phosphor coating on the inside of the bulb to glow.
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Types of Light Sources and Light Bulbs Compact Fluorescent Lamps (CFLs) are small fluorescent bulbs that can be used in most types of lighting fixtures. The screw-in types can be used to replace incandescent lamps in standard lamp sockets. T8 bulbs with electronic ballasts are commonly used in larger ceiling fixtures.
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What Are Compact Fluorescent Light Bulbs? Unlike incandescent bulbs which use a filament, Compact Fluorescent Light Bulbs give off light when a mixture of three phosphors are exposed to ultraviolet light from mercury atoms.
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Light Bulb Buying Guide Compact Fluorescent (CFL) and Light Emitting Diode (LED) bulbs are the most energy-efficient light bulb options. They have lower wattage than incandescent bulbs, but emit the same light output. This allows them to produce the same amount of light, but use less energy.View the chart for key differences.ore lumens equals brighter light, fewer lumens. equals dimmer light. Standard 100-watt bulbs produce about 1600 lumens. Watts-the amount of energy a light bulb uses. The lower the watts, the lower the electric bill. CFLs and LEDs have a lower wattage than incandescent bulbs, but emit the same light output.
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- Use of these ballasts is an excellent energy-saving strategy that. should not be overlooked by anyone interested in reducing operating costs. Technology Description. All gas discharge lamps, including fluorescent lamps, require a ballast to operate.
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What Is Incandescent Light? An incandescent light bulb or light source is any device that uses electricity to heat a filament - or wire - until it is hot enough to glow white. If that was done in the open air, in the presence of oxygen, the metal filament would burn up before it got that hot.
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Types of Light Sources and Light Bulbs Screw-in types can be used in place of incandescents in standard lamp sockets. Available in a wide spectrum of colors. Warm white tones best duplicate the color of incandescents. Today's fluorescent bulbs come in a wide selection of sizes and can produce warm tones of light similar to those of incandescents.
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What is artificial lighting? Answer by Teddybearpicnic2. Confidence votes 282. Artificial lighting is any lighting that is not sunlight. Generally speaking, artificial lighting is lighting which is man made, such as fluorescent, tungsten, mercury vapor, sodium vapor, halogen, compact fluorescent, et cetera.It can be turned on and off at a flick of a switch.nswer by Teddybearpicnic2. Confidence votes 282. Artificial lighting is any lighting that is not sunlight. Generally speaking, artificial lighting is lighting which is man made, such as fluorescent, tungsten, mercury vapor, sodium vapor, halogen, compact fluorescent, et cetera.
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- What is a ballast? In a fluorescent lighting system, the ballast regulates the current to the lamps and provides sufficient voltage to start the lamps. Without a ballast to limit its current, a fluorescent lamp connected directly to a high voltage power source would rapidly and uncontrollably increase its current draw.
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Light Bulbs Linear fluorescent bulbs, also known as fluorescent tubes, are more energy efficient than incandescents or halogens because they don't produce much heat. These are the thin, long tube lights often found in kitchens for under-cabinet lighting, or in garages, workshops, and basements.
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Light Bulb Buying Guide Compact Fluorescent (CFL) and Light Emitting Diode (LED) bulbs are the most energy-efficient light bulb options. They have lower wattage than incandescent bulbs, but emit the same light output. This allows them to produce the same amount of light, but use less energy.View the chart for key differences.alogen bulbs use a filament that’s heated to the point of glowing, the same as incandescent bulbs, but they use less energy. 1  Halogen bulbs last on average 1 year. 2  Halogen bulbs do not contain mercury.
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Affordable, energy savingcompact fluorescent bulbs Philips compact fluorescent light bulbs (CFL) provide high-performance, energy saving and long-lasting light. Choose from a range of bulb shapes, applications and color temperatures to create a Lighting ambience that fits your mood.
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- (ĭn′kən-dĕs′ənt) A lamp that produces light by heating up a filament of wire inside a bulb with an electric current. Because the filament, usually made of tungsten, would burn from the heat, the bulb is filled with a nonreactive gas, such as argon, which protects the wire from burning. Compare fluorescent lamp.
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- Light Bulb Types. HID, or high-intensity discharge light bulbs and lamps, are a family of gas-discharge arc lamps which create light by sending an electrical discharge between two electrodes and through a plasma, or ionized gas.
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The Fluorescent Lighting System Lamp #4 (23 watt compact fluorescent) produces considerably more light than Lamp #1 (60 watt incandescent) and still consumes about a third of the electricity. Currently, this is my favorite lamp size to use in place of 60 watt incandescents.amp #6 (40 watt traditional incandescent) and lamp #7 (40 watt fluorescent lamp), both consume the same amount of power, but the fluorescent lamp produces over six times the amount of light for the same electrical cost.
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- ballast - A device required by electric-discharge light sources such as fluorescent or HID lamps to regulate voltage and current supplied to the lamp during start and throughout operation.
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- The bulb’s brightness, measured in lumens, and a disclosure for bulbs containing mercury will also be printed on each bulb. Incandescent Bulbs. Incandescent bulbs are the original type of bulb as designed by Thomas Edison. They produce light when an electric current passes through a filament and causes it to glow. Inexpensive and widely available, they are the most commonly used bulbs today, but are being replaced by more energy efficient choices.
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Compact fluorescent lamp Comparison of compact fluorescent lamp with 105 W, 36 W, and 11 W power consumption. A compact fluorescent lamp (CFL), also called compact fluorescent light, energy-saving light, and compact fluorescent tube, is a fluorescent lamp designed to replace an incandescent light bulb; some types fit into light fixtures designed for incandescent bulbs.
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Light fixture A large number of light fixtures and lamps at a store. A light fixture (US English), light fitting (UK English), or luminaire is an electrical device used to create artificial light by use of an electric lamp. All light fixtures have a fixture body and a light socket to hold the lamp and allow for its replacement.
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Light Bulb Types for Recessed Lighting Type. The four light bulb types used in residential recessed lighting are incandescent, halogen, compact fluorescent (CFL), and light emitting diode (LED). Incandescent light bulbs are the most common type used among homeowners (for now), despite being the oldest and most inefficient technology.his made it impossible to use an energy-efficient fluorescent light bulb in a standard (non-fluorescent) light fixture. To solve this problem, manufacturers began offering CFL lamps with miniature built-in ballasts and standard screw bases which allowed the bulb to be used in any standard fixture.
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- Incandescent bulbs are gradually being replaced in many applications by other types of electric light, such as fluorescent lamps, compact fluorescent lamps (CFL), cold cathode fluorescent lamps (CCFL), high-intensity discharge lamps, and light-emitting diode lamps (LED).
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- Types of Lighting. - 1 Incandescents. - 2 Fluorescent Tubes. - 3 Compact Fluorescents (CFL) - 4 HID (High-Intensity Discharge) Lighting. - 5 Metal Halide Lighting. - 6 HPS (High Pressure Sodium) Lighting. - 7 LED (Light Emitting Diode) Lighting. - 8 Other Specialist Lights.
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- Fluorescent light bulbs emit white light. To some holistic healers, white light can cleanse and protect auras from negative energy. When all of the visible spectrum is combined, the result is white light. Spitual healers attempt to connect with white light through prayer and meditation.
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- Fluorescent substances absorb short-wavelength light (such as the ultraviolet radiation given off by a black light) and re-emit it almost instantaneously (usually in 10 -6 to 10 -9 seconds). The emitted light often has a longer wavelength than the radiation that was originally absorbed.