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. [31], Fluorescent lamps get dimmer over their lifetime,[32] so what starts out as an adequate luminosity may become inadequate. In the United States, the Program for the Evaluation and Analysis of Residential Lighting (PEARL) was created to be a watchdog program. The EPA and the Maine DEP recommend a sealed glass jar as the best repository for a broken bulb.[88]. Many CFLs can directly replace an existing incandescent lamp. MASTER PL-T is an efficient compact fluorescent lamp, typically used in general downlights for retail, hospitality and office applications demanding higher lighting levels. [87] It recommends airing out the room and carefully disposing of broken pieces in a jar. 3 Compact fluorescent lamps are promoted through California’s Residential Lighting and Appliance Program. 112/2010) of the Environmental Management Act and all amending regulations. The voltage of CCFLs is about 5 times higher than CFLs, and the current is about 10 times lower. Created as a more energy-efficient option for conventional incandescent applications, CFLs screw into a medium base socket and utilize a spiral design – as opposed to a long tube – making it "compact." 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. “Compact fluorescent lamp.” Merriam-Webster.com Dictionary, Merriam-Webster, https://www.merriam-webster.com/dictionary/compact%20fluorescent%20lamp. In such cases, CFLs with low (below 30 percent) total harmonic distortion (THD) and power factors greater than 0.9 should be selected. Some CFLs are labeled not to be run base up, since heat will shorten the ballast's life. Color names used for modern CFLs and other tri-phosphor lamps vary between manufacturers, unlike the standardized names used with older halophosphate fluorescent lamps. [18] Current recommendations for fully enclosed, unventilated light fixtures (such as those recessed into insulated ceilings), are either to use "reflector CFLs" (R-CFL),[19][20] cold-cathode CFLs or to replace such fixtures with those designed for CFLs. [12] In 1985, Osram started selling its model EL lamp, which was the first CFL to include an electronic ballast. [6] George Inman later teamed with General Electric to create a practical fluorescent lamp, sold in 1938 and patented in 1941. Health and environmental concerns about mercury have prompted many jurisdictions to require spent lamps to be properly disposed of or recycled, rather than being included in the general waste stream sent to landfills. [28] CFLs produce less light later in their lives than when they are new. fluorescent lamp synonyms, fluorescent lamp pronunciation, fluorescent lamp translation, English dictionary definition of fluorescent lamp. There is ongoing work in improving the "quality" (color rendering index) of the light. Details and Downloads. Reg. The most common type consists of a blue light emitting diode with a phosphor coating which produces yellow light when the blue light from the diode lands on it. 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. White LEDs have advanced to the stage where they are a good substitute for the compact fluorescent lamp. CCFLs rely on the discharge itself to heat the electrodes which operate at similar temperatures to 'hot cathode' CFLs. This includes fluorescent tubes, compact fluorescent lamps, metal halide lamps, and sodium vapor lams. 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. CFLs need a little more energy when they are first turned on, but once the electricity starts moving, CFLs use about 70% less energy than incandescent bulbs. It is filled with an inert gas typically argon which acts as conductor and also consists of mercury liquid. Many models of CFLs are available that are designed to replace traditional incandescent bulbs. The adapter consists of a regular bulb screw, the ballast itself and a clip for the lamp's connector. The graph assumes that CFLs last an average of 8,000 hours regardless of manufacturer and premature breakage. There are two types of CFLs: integrated and non-integrated lamps (CFL-i = integrated ballast and CFL-ni = non-integrated ballast). 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". Neutral white (3500 K) is becoming popular for office and retail use. Dimmable CFLs are not a 100% replacement for incandescent fixtures that are dimmed for "mood scenes" such as wall sconces in a dining area. Define Fluorescent Tubes and Bulbs. Energy Star certified CFLs must meet FCC standards, and so are required to list all known incompatibilities on the package.[63][64]. Their main advantage is much simpler driving circuitry. No cellular damage was observed following exposure to incandescent light of equivalent intensity. 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. Like CFLs, the light output degrades as the bulb ages though somewhat more slowly. 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. However, recent products have solved these problems so that they perform more like incandescent lamps. A lamp that produces light by exciting the atoms of a mixture of argon gas and mercury vapor with electric current. In the opinion of Noah Horowitz of the Natural Resources Defense Council, most CFL bulbs would not meet the standards. Over the years, advances in technology have brought about innovations in how to light our homes and commercial buildings. [6] The Cooper Hewitt lamps were used for photographic studios and industries.[6]. CFL light output is roughly proportional to phosphor surface area, and high output CFLs are often larger than their incandescent equivalents. Xiangshan solved this problem by bending the tubes by hand, made possible by the then-low labor costs in China. A Maine Department of Environmental Protection (DEP) study of 2008 comparing clean-up methods warns that using plastic bags to store broken CFL bulbs is dangerous because vapors well above safe levels continue to leak from the bags. [29] The response of the human eye to light is logarithmic. [14] Since that time, sales steadily increased. 10 X 14.5 Inches Fluorescent Lamp and Tube Poster. Compact fluorescent lamps (CFL bulbs) are a twist on traditional fluorescent technology. The incoming AC current is first rectified to DC, then converted to high frequency AC by the transistors, connected as a resonant series DC to AC inverter. Shop all of our fluorescent T5 and CFL grow lights. The combination of the yellow and blue light produces white light. 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. Meaning of fluorescent lamp. Translations . The spiral CFL was invented in 1976 by Edward E. Hammer, an engineer with General Electric,[7] in response to the 1973 oil crisis. [43], While the purchase price of a CFL is typically 3–10 times greater than that of an equivalent incandescent lamp, a CFL lasts 8–15 times longer and uses two-thirds to three-quarters less energy. The lamps use a tube which is curved or folded to fit into the space of an incandescent bulb, and a compact electronic ballast in the base of the lamp. Accessed 6 Jan. 2021. Broken lamps can release mercury to the air and water. Every extra phosphor added to the coating mix improves color rendering but decreases efficiency and increases cost. The light output decay is exponential, with the fastest losses being soon after the lamp is first used. Fluorescent lamps are lamps in which light is produced as a result of flow of free electrons and ions inside a gas. [86] Despite following EPA best-practice clean-up guidelines on broken CFLs, researchers were unable to remove mercury from carpet, and agitation of the carpet — such as by young children playing — created localized concentrations as high as 0.025 mg/m3 in air close to the carpet, even weeks after the initial breakage. A bi-pin tube contains an integrated starter, which obviates the need for external heating pins but causes incompatibility with electronic ballasts. Using a dimmer with a standard CFL is ineffective and can shorten bulb life and void the warranty. See, Scientific Committee on Emerging and Newly Identified Health Risks, National Electrical Manufacturers Association, electromagnetically induced acoustic noise, Learn how and when to remove these template messages, Learn how and when to remove this template message, "CFL Bulbs Have One Hitch: Toxic Mercury", "The Best Compact Fluorescent Light Bulbs: PM Lab Test", "Inventing Six Modern Electric Lamps: Compact Fluorescent – The Challenge of Manufacturing", "Edward E. Hammer of Nela Park invented compact fluorescent light bulbs: news obituary", "Father of the compact fluorescent bulb looks back", "Philips Tornado Asian Compact Fluorescent", "As LEDs burn bright, it'll soon be lights out for CFL bulbs", "A Dealer Guide to Energy Star: Putting Energy into Profits", Buying and Selling Gems:What Light is Best? 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. CCFLs use electrodes without a filament. [8] Although the design met its goals, it would have cost GE about $25 million to build new factories to produce the lamps, and thus the invention was shelved. The efficacy (lumens per watt) is about half that of CFLs[citation needed]. 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. [16] LED prices fell well below US$5 for a basic bulb in 2015. A 2012 study comparing cellular health effects of CFL light and incandescent light found statistically significant cell damage in cultures exposed to CFL light. 'Nip it in the butt' or 'Nip it in the bud'? The luminous efficacy of lamps is the number of lumens produced for each watt of electrical power used. of Energy, Greening Federal Facilities, 2nd Edition, ', Ivanco, M., Karney, B.W., Waher, K.J. Delivered to your inbox! CCFLs have a diameter of about 3 millimeters. Non-integrated CFL housings can be both more expensive and sophisticated. [citation needed] The crushed glass and metal is stored in drums, ready for shipping to recycling factories. 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). The latest types exhibit superior efficacies, and a choice of color temperature. 'All Intensive Purposes' or 'All Intents and Purposes'? n 1. a type of lamp in which an electrical gas discharge is maintained in a tube with a thin layer of phosphor on its inside surface. Only some CFLs are labeled for dimming control. Below the 20% limit, the lamp may remain at 20% or flicker or the starter circuitry may stop and restart. 3-way lamps and dimmable models with standard bases are available. Both are gas-discharge lamps that use electricity emitted from cathodes to excite mercury vapor contained within the glass envelope, using a process known as inelastic scattering. The Kruithof curve from 1934 described an empirical relationship between intensity and color temperature of visually pleasing light sources. 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 principle of operation remains the same as in other fluorescent lighting: electrons that are bound to mercury atoms are excited to states where they will radiate ultraviolet light as they return to a lower energy level; this emitted ultraviolet light is converted into visible light as it strikes the fluorescent coating (as well as into heat when absorbed by other materials such as glass). Define fluorescent lamp. [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. LED bulbs have a long life generally around 25,000 hours, with some up to 35,000 hours. [38], Because of their higher efficacy, CFLs use between one-seventh and one-third of the power of equivalent incandescent lamps. [49], In addition to the wear-out failure modes common to all fluorescent lamps, the electronic ballast may fail, since it has a number of component parts. 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. The problem can come from improper disposal. Dimmable white LED bulbs are available. ", "I've noticed some CFLs need a few minutes to warm up, or reach full brightness ...", "Why does it take time for CFL bulbs to come up to full brightness? Compact fluorescent lamp. CFLs are a type of fluorescent lamp. Ultraviolet rays produced by the excited atoms strike a phosphor coating on the interior surface of the bulb, causing it to emit visible light. compact fluorescent light bulb or lamp is a type of fluorescent lamp generally designed as a replacement for incandescent or halogen lamps There are many variables, so lets dig in! ", "GE Lighting Frequently Asked Questions — Compact Fluorescent (CFL): 4. “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. You must — there are over 200,000 words in our free online dictionary, but you are looking for one that’s only in the Merriam-Webster Unabridged Dictionary. "To Switch, or Not to Switch: A Critical Analysis of Canada's Ban on Incandescent Light Bulbs,". This is due to the reduced electrical power demand, reducing in turn the amount of mercury released by coal as it is burned. CFL bulbs are … [15], The rise of LED lighting, however, significantly affected CFL sales and production. In areas with coal-fired power stations, the use of CFLs saves on mercury emissions when compared to the use of incandescent bulbs. [89] Several states, including Vermont, New Hampshire, California, Minnesota, New York, Maine, Connecticut and Rhode Island, have regulations that are more stringent than the federal UWR. 200 0000+ solar powered kerosene-lamp replacements assisted by aid agencies: 3100°K is typical; individual bulbs vary. They do, however, emit higher levels of UVB (short wavelength) radiation. In this mercury vapor gets excited by the electric current which in turn generates short ultraviolet light waves. This electromagnetically induced acoustic noise comes from the vibration of the magnetic core of the ballast subject to electromagnetic forces. A compact fluorescent lamp is a small fluorescent lamp (= a tubular light bulb coated with phosphor which produces a bright light) that has a lamp life that is much longer than incandescent lamps. More than 250,000 words that aren't in our free dictionary, Expanded definitions, etymologies, and usage notes. 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. In the United States, most states have adopted and currently implement the federal Universal Waste Rule (UWR). Modern CFLs typically last at least six times as long and use at most a quarter of the power of an equivalent incandescent bulb. color) as the light source. Since the resonant converter tends to stabilize lamp current (and light produced) over a range of input voltages, standard CFLs do not respond well in dimming applications and will experience a shorter lifespan and sometimes catastrophic failure. CCFLs were initially used for document scanners and also for back-lighting LCD displays, and later manufactured for use as lamps. In the case of a 5-minute on/off cycle the lifespan of some CFLs may be reduced to that of incandescent light bulbs. [47] At that time, Ellis Yan, whose Chinese company made the majority of CFLs sold in the United States, said he was interested in building a United States factory to make CFL bulbs, but wanted $12.5 million from the U.S. government to do so. According to the European Commission Scientific Committee on Emerging and Newly Identified Health Risks (SCENIHR) in 2008, CFLs may pose an added health risk due to the ultraviolet and blue light emitted. Compared to general-service incandescent lamps giving the same amount of visible light, CFLs use one-fifth to one-third the electric power, and last eight to fifteen times longer. [citation needed] The phosphor coating in spiral CFLs is uneven, being thicker at the bottom than at the top, owing to the effect of gravity during the coating process. The color temperature is characteristic of black-body radiation; practical white light sources approximate the radiation of a black body at a given temperature, but will not have an identical spectrum. In the European Union, CFLs are one of many products subject to the WEEE recycling scheme. PEARL has evaluated the performance and ENERGY STAR compliance of more than 150 models of CFL bulbs.[94][95]. ", "Home Depot Offers Recycling for Compact Fluorescent Bulbs", "Compact Fluorescent Lamp Recycling Project Phase I Draft Report Background Research and Program Options", http://www.ashdenawards.org/winners/mpgvm, http://www.ashdenawards.org/winners/Dlight10, "Program for Evaluation and Analysis of Residential Lighting (PEARL) | Programs | LRC", Energy Star Program Requirements for CFLS Partner Commitments, Plug-In Plug-in CFL (PL Type) Lamps / Non-integrated Bulbs, A technical description of a typical CFL circuit, https://en.wikipedia.org/w/index.php?title=Compact_fluorescent_lamp&oldid=997041892, Articles with unsourced statements from January 2019, Articles lacking reliable references from October 2011, Articles with unsourced statements from June 2012, Articles containing potentially dated statements from 2009, All articles containing potentially dated statements, Articles with unsourced statements from May 2011, Articles with unsourced statements from March 2016, Articles with unsourced statements from August 2011, Articles needing additional references from November 2015, All articles needing additional references, Articles with multiple maintenance issues, Creative Commons Attribution-ShareAlike License, This page was last edited on 29 December 2020, at 19:10. 99 ($8.50/Item) Get it as soon as Tue, Jul 7. The luminous efficacy of a typical CFL is 50–70 lumens per watt (lm/W) and that of a typical incandescent lamp is 10–17 lm/W. [97], In the United Kingdom, a similar program is run by the Energy Saving Trust to identify lighting products that meet energy conservation and performance guidelines.[98]. Savings are greater and payback periods shorter in regions with higher electric rates and, to a lesser extent, also in regions with higher than U.S. average cooling requirements. [46], According to an August 2009 newspaper report, some manufacturers claimed that CFLs could be used to replace higher-power incandescent lamps than justified by their light output. 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. Energy, Greening federal Facilities, 2nd Edition, ', Ivanco, M., Karney, B.W.,,. ) where color gets redder as the bulb may operate at similar temperatures to 'hot cathode ' CFLs and have... ( warmth ) stays the same popular sizes as incandescents and are as. ) and light emitting diodes or LED for short the end of their higher efficacy than the technology. To phosphor surface area, and usage notes to electromagnetic forces heard it ( including quote! Rise of LED lighting, however, frequent on-off cycling ( turning and. Xiangshan, became commercially available. [ 88 ] light ( CFL ) and light emitting diodes or for... 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