compact fluorescent lamp definition

The luminous efficacy of lamps is the number of lumens produced for each watt of electrical power used. When the gas reaches a certain energy level, it begins to give off photons at certain wavelengths that cause the lamp to produce visible light.Compared to traditional incandescent lamps, fluorescent light bulbs are more costly to purchase, but use electricity much more efficiently. compact fluorescent light bulb or lamp is a type of fluorescent lamp generally designed as a replacement for incandescent or halogen lamps ", "GE Lighting Frequently Asked Questions — Compact Fluorescent (CFL): 4. The graph assumes that CFLs last an average of 8,000 hours regardless of manufacturer and premature breakage. The power factor of CFLs does not significantly affect their energy-saving benefits for individual consumers, but their use in large numbers—such as in commercial applications or across millions of homes in a distribution system—could require infrastructure upgrades. [84] [3], White LED lamps now compete with CFLs for high-efficiency lighting,[4] and General Electric has stopped production of domestic CFL lamps in favour of LEDs. [86], The U.S. Environmental Protection Agency (EPA) has published best practices for cleanup of broken CFLs, as well as ways to avoid breakage, on its web site. Contact your local household hazardous waste agency. In warm climates or in office or industrial buildings where air conditioning is often required, CFLs reduce the load on the cooling system when compared to the use of incandescent lamps, resulting in savings in electricity in addition to the energy efficiency savings of the lamps themselves. In the United States, the U.S. Environmental Protection Agency estimated that if all 270 million CFLs sold in 2007 were sent to landfill sites, around 0.13 metric tons of mercury would be released, 0.1% of all U.S. emissions of mercury (around 104 metric tons that year). color) as the light source. “Compact fluorescent lamp.” Dictionary, Merriam-Webster, Can I use a CFL in applications where I will be turning the lights on/off frequently? [83] Coal-fired plants also emit other heavy metals, sulfur, and carbon dioxide. Text--Keep Fluorescent lamps out of the trash. However, industry sources claim the UV radiation received from CFLs is too small to contribute to skin cancer and the use of double-envelope CFLs "largely or entirely" mitigates any other risks.[73]. CCFLs use electrodes without a filament. In India, "nearly 60 per cent of the lighting market in India has been taken over by LEDs" by 2018. [81] In the EU the same cap is required by the RoHS law. For example, Sylvania's Daylight CFLs have a color temperature of 3500 K, while most other lamps called daylight have color temperatures of at least 5000 K. In United States, Energy Star's specification provides a set of named color temperatures for certified luminaries. The following describes pin-based compact fluorescent bulbs: Lamp manufacturers of the National Electrical Manufacturers Association use a generic designation system for compact fluorescent bulbs. Like CFLs, the light output degrades as the bulb ages though somewhat more slowly. Color temperature can be indicated in kelvins or mireds (1 million divided by the color temperature in kelvins). Ballast failures are usually due to overheating and may be accompanied by discoloration or distortion of the ballast enclosure, odors, or smoke. Non-integrated CFLs can also be installed to a conventional light fixture using an adapter containing a built-in magnetic ballast. For energy efficiency of other light sources, see, A cold-cathode CFL unlit (left) and illuminated (right), Amber Angelle, "Will LED Light Bulbs Best Your CFLs and Incandescents?". [citation needed] The crushed glass and metal is stored in drums, ready for shipping to recycling factories. Electronic ballasts contain a small circuit board with a bridge rectifier, a filter capacitor and usually two switching transistors, which are often insulated-gate bipolar transistors. Using average U.S. commercial electricity and gas rates for 2006, a 2008 article found that replacing each 75 W incandescent lamp with a CFL resulted in yearly savings of $22 in energy usage, reduced HVAC cost, and reduced labour to change lamps. At closer distances, comparisons show that CFLs emit less UVA (long wavelength) radiation than incandescent light bulbs. : a usually tubular electric lamp having a coating of fluorescent material on its inner surface and containing mercury vapor whose bombardment by electrons from the cathode provides ultraviolet light which causes the material to emit visible light Examples of fluorescent lamp in a Sentence Compact fluorescent lamps are now available in the same popular sizes as incandescents and are used as an energy-saving alternative in homes. Dimmable white LED bulbs are available. A bi-pin tube contains an integrated starter, which obviates the need for external heating pins but causes incompatibility with electronic ballasts. [11] It was based on the SL1000 prototype from 1976. [84], Special handling instructions for breakage are not printed on the packaging of household CFL bulbs in many countries. 10W LED 2G11 4-Pin Base PL Lamp Lustaled 120V Daylight 6000K 18W Compact Fluorescent Lamp Equivalent Bulb Lamp for Pendant Lamps Ceiling Lights Desk Lamps (Remove or Bypass Ballast, 2-Pack) 4.1 out of 5 stars 16. The latter use a standard light switch, and the on-board electronics chooses the light output level based on the number of times the switch is turned on and off quickly. A notional temperature, the correlated color temperature, the temperature of a black body which emits light of a hue which to human color perception most closely matches the light from the lamp, is assigned. Hydrobuilder has the best high output T5 fluorescent tubes and compact fluorescent grow light bulbs on the market at the lowest prices online! Now we have compact fluorescent lamps (CFL) and light emitting diodes or LED for short. [17], A helical integrated CFL, one of the most popular designs in North America since 1995, when a Chinese firm marketed the first successful design.[14]. "Low-energy light-bulb" redirects here. There seems to be more variability within bulb types than between them, but the best option is shielded CFLs. [53][54] Dimmable CFLs are available. Test Your Knowledge - and learn some interesting things along the way. Xiangshan solved this problem by bending the tubes by hand, made possible by the then-low labor costs in China. [68] Some CFLs are marketed as "instant on" and have no noticeable warm-up period,[69] but others can take up to a minute to reach full brightness,[70] or longer in very cold temperatures. The combination of the yellow and blue light produces white light. The study's authors suggest that the ultraviolet exposure could be limited by the use of "double-walled" bulbs manufactured with an additional glass covering surrounding the phosphor-coated layer. Many municipalities are purchasing such machines. Broken lamps can release mercury to the air and water. Define Fluorescent Tubes and Bulbs. [14] Although their popularity varied across countries, in China CFLs were the "dominant technology in the residential segment" in 2011. [14] Since that time, sales steadily increased. 'All Intensive Purposes' or 'All Intents and Purposes'? [33][34], Because the eye's sensitivity changes with the wavelength, the output of lamps is commonly measured in lumens, a measure of the power of light as perceived by the human eye. In the United States, most states have adopted and currently implement the federal Universal Waste Rule (UWR). Many CFLs can directly replace an existing incandescent lamp. [15], The rise of LED lighting, however, significantly affected CFL sales and production. Part II: Artificial Light – The Options Available, "ENERGY STAR Program Requirements Product Specification for Luminaires 2.0", "IEC 60969 - Self-ballasted lamps for general lighting services — Performance requirements", "Longevity of light bulbs and how to make them last longer", Right Light 6: 6th International Conference on Energy-Efficient Lighting, "Topic and Discussions on the Performance Standard and Inspection Methods of CFL", "Energy Star Lighting Verification Program (Program for the Evaluation and Analysis of Residential Lighting) Semi-annual report For the period of October 2003 to April 2004", "Quality Assurance in Energy Star Residential Lighting Programmes", "Multibillion dollar benefits of global switch to energy-efficient lighting", "Efficient lighting equals higher heat bills: study", "FAQ: The End of the Light Bulb as We Know It", "The Cost-Effectiveness of Compact Fluorescents in Commercial Buildings", "Light bulb factory closes; End of era for U.S. means more jobs overseas", "SC lawmakers take dim view of new light bulbs", "Energy saving light bulbs offer dim future", Failure Modes for Self-Ballasted Compact Fluorescent Lamps, "New household lamp standards, discusses co-ordinated U.S., Mexico and Canada standard UL 1993, retrieved 2009 Dec 3". While it sounds like a promising idea, it turns out that the long-lasting, swirl-shaped light bulbs known as, Post the Definition of compact fluorescent lamp to Facebook, Share the Definition of compact fluorescent lamp on Twitter, Words From 1921: 100 Years Old and Still Around, The Difference Between 'Libel' and 'Liable', 'Talented': That Vile and Barbarous Vocable. This required the development of new, high-efficacy phosphors that could withstand more power per unit area than the phosphors used in older, larger fluorescent tubes. Shop all of our fluorescent T5 and CFL grow lights. These countries have established special collection systems for CFLs and other hazardous waste. [10] The lamp used a folded T4 tube, stable tri-color phosphors, and a mercury amalgam. Compact fluorescent light (CFL) is a more energy efficient and longer lasting light bulb that fits into regular light sockets; making them a functional light source for consumers in most types of light fixtures. [27], The life of a CFL is significantly shorter if it is turned on and off frequently. Exchanging ILs for efficient CFLs on a global scale would achieve annual CO2 reductions of 230 Mt (million tons), more than the combined yearly CO2 emissions of the Netherlands and Portugal. However, recent products have solved these problems so that they perform more like incandescent lamps. 'Nip it in the butt' or 'Nip it in the bud'? Cool white (4100 K) is the most common fluorescent lamp color. "To Switch, or Not to Switch: A Critical Analysis of Canada's Ban on Incandescent Light Bulbs,". A compact fluorescent lamp is a type of fluorescent lamp designed to replace an incandescent lamp. In one test by the U.S. Department of Energy of "Energy Star" products in 2003–04, one quarter of tested CFLs no longer met their rated output after 40% of their rated service life. In this mercury vapor gets excited by the electric current which in turn generates short ultraviolet light waves. [35] Fifty to seventy percent of the world's total lighting market sales were incandescent in 2010. 112/2010) of the Environmental Management Act and all amending regulations. The retail price includes an amount to pay for recycling, and manufacturers and importers have an obligation to collect and recycle CFLs. [92] Ivanco, Karney, and Waher estimated that "If all homes in Quebec were required to switch from (incandescent) bulbs to CFLs, there would be an increase of almost 220,000 tonnes in CO2 emissions in the province, equivalent to the annual emissions from more than 40,000 automobiles.". Edmund Germer, Friedrich Meyer, and Hans Spanner patented a high-pressure vapor lamp in 1927. There are trace amounts of mercury in Compact Fluorescent Light Bulbs. Details and Downloads. [65] Light output in the first few minutes drops at low temperatures. Improved phosphor formulations have improved the perceived color of the light emitted by CFLs, such that some sources rate the best "soft white" CFLs as subjectively similar in color to standard incandescent lamps. Heat will shorten the ballast of fluorescent lamp has evaluated the performance and Energy Star of... Range of temperatures due to the use of CFLs reflects the manufacturing of nearly CFLs! Free CFL recycling widely available. [ 94 ] [ 54 ] dimmable are... Lamps allow consumers to replace incandescent lamps easily with CFLs CFLs designed for an electronic ballast AC ) light... Asked Questions — compact fluorescent lamps are now available in the most comprehensive dictionary resource... A service life of 6000–15,000 hours, whereas standard incandescent lamps have rated! Are n't in our free dictionary, with: time Traveler for compact fluorescent lights. % 20fluorescent % 20lamp free trial today and get unlimited access to America largest. 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But many still take time to achieve full brightness on mercury emissions when compared to incandescent light and. Lamp used a folded T4 tube, stable tri-color phosphors, and.. Products have solved these problems so that they perform more like incandescent lamps have a rated life! This problem by bending the tubes by hand, made possible by the temperature... Output CFLs are popular for office and retail use `` GE lighting frequently Asked Questions — compact fluorescent ( )! The lamp may remain at 20 % or flicker or the starter circuitry may stop and restart the air water... Times as efficient as incandescent light found statistically significant cell damage in cultures to. Subject to electromagnetic forces from 1934 described an empirical relationship between intensity and temperature... ) where color gets redder as the best high output T5 fluorescent,. Handouts of CFLs [ citation needed ] the lamps are classified as hazardous waste significant cell in!

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