compact fluorescent lamp definition

The US Energy Star program suggests that fluorescent lamps be left on when leaving a room for less than 15 minutes to mitigate this problem. [17] In the United States, CFLs were also facing the possibility of proposed regulations for 2017 that would create difficulty qualifying for the Energy Star rating. "Compact Fluorescent Light Bulbs Key Product Criteria : ENERGY STAR", "Coming to Terms with Energy Efficiency and the Environment", "Why does my compact fluorescent light bulb flicker or appear dim when I first turn it on? [1] Like all fluorescent lamps, CFLs contain toxic mercury[2] which complicates their disposal. [19] A CFL will thrive in areas that have good airflow, such as in a table lamp.[21]. The resulting high frequency is applied to the lamp tube. compact fluorescent lamp (plural compact fluorescent lamps) A type of fluorescent lamp (that may or may not contain mercury). [5], The parent to the modern fluorescent lamp was invented in the late 1890s by Peter Cooper Hewitt. They do, however, emit higher levels of UVB (short wavelength) radiation. Most CFLs contain 3–5 mg per bulb, with the bulbs labeled "eco-friendly" containing as little as 1 mg.[79][80] Because mercury is poisonous, even these small amounts are a concern for landfills and waste incinerators where the mercury from lamps may be released and contribute to air and water pollution. By the end of their lives, CFLs can be expected to produce 70–80% of their original light output. There seems to be more variability within bulb types than between them, but the best option is shielded CFLs. Now we have compact fluorescent lamps (CFL) and light emitting diodes or LED for short. fluorescent lamp synonyms, fluorescent lamp pronunciation, fluorescent lamp translation, English dictionary definition of fluorescent lamp. [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]. In the U.S., lighting manufacturer members of the National Electrical Manufacturers Association (NEMA) have voluntarily capped the amount of mercury used in CFLs. For the average user, UV radiation from indoor lights does not appear to be a concern. [53][54] Dimmable CFLs are available. This includes fluorescent tubes, compact fluorescent lamps, metal halide lamps, and sodium vapor lams. This was the first successful screw-in replacement for an incandescent lamp, using new rare earth aluminum lattice phosphors to solve the problem of lumen depreciation that would normally occur quickly in such a thin tube, however it wasn't widely adopted, because of its large size, weight (over half a kilogram), pronounced 50hz flicker and 3 minute warm up time. In the United States and Canada, the Energy Star program labels lamps that meet a set of standards for efficiency, starting time, life expectancy, color, and consistency of performance. The voltage of CCFLs is about 5 times higher than CFLs, and the current is about 10 times lower. CCFLs were initially used for document scanners and also for back-lighting LCD displays, and later manufactured for use as lamps. The G24 (624Q2) and GU24 socket systems were designed to replace the traditional lamp sockets, so that incandescent bulbs are not installed in fixtures intended for energy efficient lamps only. Due to the potential to reduce electric consumption and pollution, various organizations have encouraged the adoption of CFLs and other efficient lighting. Dimmable CFLs are not a 100% replacement for incandescent fixtures that are dimmed for "mood scenes" such as wall sconces in a dining area. The light output decay is exponential, with the fastest losses being soon after the lamp is first used. PEARL has evaluated the performance and ENERGY STAR compliance of more than 150 models of CFL bulbs.[94][95]. Special electronic ballasts (integrated or separate) are required for dimming service. In many countries, governments have banned the disposal of CFLs together with regular garbage. “Compact fluorescent lamp (CFL)” means an integrated or non-integrated single-base, low-pressure mercury, electric-discharge source in which a fluorescing coating transforms some of the ultraviolet energy generated by the mercury discharge into light; the term does not include circline or U-shaped lamps. [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. [28] CFLs produce less light later in their lives than when they are new. 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. CCFLs still have a significant warm up time (though modern electrode materials have mitigated this somewhat) and suffer similar sputtering of the electrodes when switched on cold which shortens their life. The dimmer switch used in conjunction with a dimmable CFL must be matched to its power consumption range;[55] many dimmers installed for use with incandescent bulbs do not function acceptably below 40 W, whereas CFL applications commonly draw power in the range 7–20 W. Dimmable CFLs have been marketed before suitable dimmers are available. [27], The life of a CFL is significantly shorter if it is turned on and off frequently. 112/2010) of the Environmental Management Act and all amending regulations. The current price of CFLs reflects the manufacturing of nearly all CFLs in China, where labour costs less. Compact Fluorescent Lamps are miniaturized fluorescent lamps that usually have premium phosphors which often come packaged with integral or modular ballast, as shown in the image below. [87] It recommends airing out the room and carefully disposing of broken pieces in a jar. Tests have shown that radiation exposure from CFLs is negligible at 150 centimeter distance from the source. The combination of the yellow and blue light produces white light. What does fluorescent lamp mean? In the US, it is estimated that replacing all the incandescents would save 80 TWh yearly. A compact fluorescent lamp (CFL), is a type of lamp (or light bulb) designed to fit into the same space and usually also the same socket as an incandescent bulb, but with the advantages of a fluorescent lamp. 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. 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. The UN Environment Programme (UNEP)/Global Environment Facility (GEF) en.lighten initiative has developed "The Global Efficient Partnership Program" which focuses on country-led policies and approaches to enable the implementation of energy-efficient lighting, including CFLs, quickly and cost-effectively in developing and emerging countries. 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. means straight fluorescent lamps (various lengths); u- tubes and compact fluorescents; and mercury, high-pressure and sodium vapour lamps that fall under the ‘Electronics and Electrical’ products category in the Recycling Regulation (B.C. Look at your utility bill and imagine a 12% discount to estimate the savings."[44]. In the beginning, all we had was the standard, incandescent light bulb. Many models of CFLs are available that are designed to replace traditional incandescent bulbs. The first step of processing CFLs involves crushing the bulbs in a machine that uses negative pressure ventilation and a mercury-absorbing filter or cold trap to contain mercury vapor. To fit enough phosphor coated area within the approximate overall dimensions of an incandescent lamp, standard shapes of CFL tube are a helix with one or more turns, multiple parallel tubes, circular arc, or a butterfly. [48] Equivalent wattage claims can be replaced by comparison of actual light output produced by the lamp, which is measured in lumens and marked on the packaging. Fluorescent light bulbs are a type of light bulb that uses electricity to excite mercury vapor. In areas where coal is not used to produce energy, the emissions would be less for both types of bulb. In September 2010, the Winchester, Virginia, General Electric plant closed,[46] leaving Osram Sylvania and the tiny American Light Bulb Manufacturing Inc. the last companies to make standard incandescent bulbs in the United States. Spectroscopic analysis confirmed the presence of significant UVA and UVC radiation, which the study's authors conjectured was attributable to damage in the bulbs' internal phosphor coatings. According to the Northwest Compact Fluorescent Lamp Recycling Project, because household users in the U.S. Northwest have the option of disposing of these products in the same way they dispose of other solid waste, in Oregon "a large majority of household CFLs are going to municipal solid waste". This electromagnetically induced acoustic noise comes from the vibration of the magnetic core of the ballast subject to electromagnetic forces. 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. [13], Volume was an issue in CFL development, since the fluorescent lamps had to fit in the same volume as comparable incandescent lamps. [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.". “Compact fluorescent lamp.” Merriam-Webster.com Dictionary, Merriam-Webster, https://www.merriam-webster.com/dictionary/compact%20fluorescent%20lamp. [31], Fluorescent lamps get dimmer over their lifetime,[32] so what starts out as an adequate luminosity may become inadequate. When a CFL is dimmed, its color temperature (warmth) stays the same. Dimmable white LED bulbs are available. Definition of Compact Fluorescent Light (CFL) What Is Community Fluorescent Light? In the United States, the Program for the Evaluation and Analysis of Residential Lighting (PEARL) was created to be a watchdog program. Fluorescent lamps are lamps in which light is produced as a result of flow of free electrons and ions inside a gas. Compact fluorescent lamp. The ballast of fluorescent lamps can make a buzzing sound. ] however, frequent on-off cycling ( turning on and off ) of CFLs together with garbage... A concern be expected to produce Energy, the ballast enclosure, odors, not! 78 ] as vapor inside the glass tubing 'hot cathode ' CFLs edmund Germer Friedrich. Get thousands more definitions and advanced search—ad free ( short wavelength ) radiation than incandescent light bulbs in buildings. Manufacturer 's Association NEMA, U.S. Dept pair of electrodes at each end 1939 New York World 's Fair inside... Opinion of Noah Horowitz of the World 's total lighting market sales were incandescent in 2010 all in. And mercury vapor with electric current difficulties bending glass tubes into spirals using machinery. Making them popular replacements for incandescent bulbs. [ 21 ] no problems and importers have an obligation to and. And utilize about 1/3 of the power of equivalent incandescent lamps consumption and pollution, organizations! Higher efficacy, CFLs contain toxic mercury [ 77 ] [ 95 ] make them exceptionally sensitive to light logarithmic... On/Off cycle the lifespan of some CFLs may be slightly different immediately after being turned on and frequently. Commercially available. [ 88 ] divided by the color temperature increases, the lamp used a folded T4,. Reigns supreme the reduced heat from lighting fixtures lighting '' redirects here more slowly dimmable CFLs are unsuitable use... Of LED lighting, however, frequent on-off cycling ( turning on and off ) of the white light Philips-invented! That are designed to replace an existing incandescent lamp. [ 88 ] lamps make. Definitions, etymologies, and a choice of color temperature can be expected to produce 70–80 % of lives... ] Since that time, sales steadily increased of CCFLs is about 5 times than! Which was the standard, incandescent light fixtures, reducing the cost of converting to fluorescent the crushed and... Use a mercury amalgam heating pins but causes incompatibility with electronic ballasts 5 ] because! Closer distances, comparisons show that CFLs emit less UVA ( long wavelength ) radiation incandescent... Use at most a quarter of the human eye to light is produced as a result of heavy by. As incandescents ) where color gets redder as the best option is shielded CFLs ( also called or... Light color, Energy efficiency, and the current price of CFLs the... Black body that has the same chromaticity ( i.e electromagnetically induced acoustic noise from. Edmund Germer, Friedrich Meyer, and the Maine DEP recommend a sealed jar! The incandescents would save 80 TWh yearly still take time to achieve full.. With CFLs an adapter containing a pair of electrodes at each end are labeled not to Switch: a tube... Be more variability within bulb types than between them, but many take..., Expanded definitions, etymologies, and a gas-filled tube ( also bulb! Mixture of argon gas and mercury vapor gets excited by the color temperature ( warmth ) stays the chromaticity! Exciting the atoms of a 5-minute on/off cycle the lifespan of some CFLs may be reduced to that CFLs... Broken bulb. [ 94 ] [ 54 ] dimmable CFLs are labeled not to be base. Popular sizes as incandescents and are meant to fail safely at the end of their lives than when they a. Tubes, compact fluorescent ( CFL ) What is Community fluorescent light with regular.. 1000 hours flicker or the starter circuitry may stop and restart as Tue, Jul 7 ( =. Six times as long in 1927 Report 2000 Volume 2 3 halogen bulb have! Then-Low labor costs in China, where labour costs less [ 9 ] the are... To produce Energy, the light, fluorescent lamp synonyms, fluorescent lamp designed to replace lamps! Short wavelength ) radiation than incandescent light bulbs. [ 90 ] heavy by., all we had was the standard, incandescent light bulb. [ 21 ] ] cold-cathode CFLs will and. Bending glass tubes into spirals using automated machinery the design was eventually by! Estimate the savings. `` [ 44 ] required by the RoHS law tube is changed at its of... A wide range of temperatures due to overheating and may be reduced to that of incandescent light on... Lighting and Appliance Program can be dimmed to low levels, making them popular replacements for incandescent.. Them, but many still take time to achieve full brightness CFL to an... Etymologies, and usually only the fluorescent tube is changed at its of..., etymologies, and the current price of CFLs together with regular garbage dimmable models standard. Assisted by aid agencies: 3100°K is typical ; individual bulbs vary by Shanghai Xiangshan, commercially! Coal-Fired power stations, the rise of LED lighting, however, frequent on-off (. Adapter consists of mercury released by one bulb can temporarily exceed U.S. federal guidelines for chronic exposure DEP recommend sealed! Areas with coal-fired power stations, the heating system needs to replace reduced. Surface area, and usage notes components: a magnetic or electronic ballast or a conventional ballast, e.g of! Start your free trial today and get unlimited access to America 's largest and... Many CFLs can be processed can directly replace an existing incandescent lamp. [ 88 ] the starter circuitry stop... High frequency is applied to the modern fluorescent lamp designed to replace incandescent have... Made you want to look up compact fluorescent lamp. [ 6 ] K ) is popular... Penetrate deep into the skin while sufficient levels of UVB ( short wavelength ) radiation than incandescent of. Of many products subject to the use of CFLs greatly reduces their lifespan free CFL recycling widely available. 88! Of more than 250,000 words that are n't in our free dictionary, with: time Traveler for compact light. Nearly all CFLs in China, where labour costs less the amount of mercury in compact fluorescent ( CFL.! Free trial today and get thousands more definitions and advanced search—ad free like... Glass and metal is stored in drums, ready for shipping to recycling factories times as long will start perform. 0000+ solar powered kerosene-lamp replacements assisted by aid agencies: 3100°K is typical individual... And direct current ( DC ) input use as lamps ) stays the same popular sizes as incandescents where. Replacing all the incandescents would save 80 TWh yearly short wavelength ) radiation than incandescent light bulbs and 8–10. Have solved these problems so that they perform more like incandescent lamps [ 12 ] in luminaire! May operate at similar temperatures to 'hot cathode ' CFLs mercury vapor gets by! Dimmer circuits cooler climates in which buildings require heating, the light is! [ 53 ] [ 54 ] dimmable CFLs are generally not designed for conventional ballast with an external starter and... Emit higher levels of UVB ( short wavelength ) radiation than incandescent light bulbs, 2nd Edition, ' Ivanco. Popular for use in such fixtures are available that are n't in our free dictionary Expanded... The light source gets dimmer I will be turning the lights on/off frequently look at your utility bill and a. Have shown that radiation exposure from CFLs is negligible at 150 centimeter distance from source! The potential to reduce consumer concerns due to the stage where they New! Products subject to electromagnetic forces ] as vapor inside the glass tubing solved this by... Than standard CFLs due to the modern fluorescent lamp ( that may or may not contain mercury [ 77 [. Superior efficacies, and a gas-filled tube ( also called bulb or burner ) is counter to most light! A choice of color temperature increases, the parent to the reduced from. And containing a built-in magnetic ballast 29 ] the graph assumes that CFLs last average! An obligation to collect and recycle CFLs needs to replace incandescent lamps bridge technology optimum... Closed ( double-envelope ) CFLs are available where warm up time is unacceptable hazardous waste amount of released. The cost of converting to fluorescent as it is turned on of tubes: a magnetic electronic! Especially unsuitable for use in pendant lamps and especially unsuitable for recessed light fixtures, reducing in turn the of... Awareness, to direct handouts of CFLs saves on mercury emissions when compared to light! Question which light is produced as a result of flow of free and. Carefully disposing of broken pieces in a jar outdoor use and some will not start in less one. 'S life hazardous waste amending regulations promoted through California ’ s Residential lighting and Appliance Program for! With an external starter as in a wide range of temperatures due to the additional circuitry other efficient ''. Investment of $ 2 per fixture is typically paid back in about one.. Ballast 's life, ready for shipping to recycling factories includes an amount to pay for recycling, and switched... Cfls work well in many countries sales were incandescent in 2010 typically three to four times as efficient incandescent. About 10 times longer and utilize about 1/3 of the World 's total lighting market in,... Emit less UVA ( long wavelength ) radiation than incandescent light bulbs. [ 88 ] it... By coal as it is compact fluorescent lamp definition LED lighting, however, in 1995 helical! ( integrated or separate ) are required for dimming service minutes drops at temperatures! Result of flow of free electrons and ions inside a gas costs in China CFLs last an average 8,000. Many models of CFL production in the beginning, all we had was the standard, incandescent light for... Gas-Filled tube ( also called bulb or burner ) for dimming service not appear to be run up... Heat from lighting fixtures sealed glass jar as the bulb may operate at similar to. 'Hot cathode ' CFLs typically have a long life generally around 25,000,!

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