| Performance of 'energy efficient' compact fluorescent lamps. | |
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MedLine Citation:
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PMID: 20132232 Owner: NLM Status: MEDLINE |
Abstract/OtherAbstract:
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BACKGROUND: Compact fluorescent lamps (CFLs) have been heralded as highly energy efficient replacements for incandescent light globes, however, there is some public dissatisfaction with the light output and colour of CFLs. Independent examination of the claims made has not been made. Compliance with the interim Australian/New Zealand Standard has not been established by any independent authority. While the total light output (luminous flux) may meet certain standards, luminous intensity distributions of some designs do differ significantly from the incandescent sources that they are intended to replace. METHODS: Luminous intensity distribution, luminous flux and spectral energy distribution of CFLs claimed to be equivalent to 75 W incandescent globes and 75 W incandescent globes (pearl and clear) were measured. Luminous flux, luminous efficacy, colour rendering index, correlated colour temperature, wattage and power factor were then calculated and compared with claims made by manufacturers and requirements of the standards. RESULTS: The sources generally complied with the requirements for luminous flux, luminous efficacy, colour rendering index and correlated colour temperature. The claim of 75 W equivalence, which is not regulated in Australia and New Zealand, is justified less than half the time. Luminous intensity distributions of biaxial CFLs are distinctly different from the incandescent lamps they purport to replace. CONCLUSION: CFLs generally comply with the standards set. The basis on which equivalent wattages are claimed needs to be included in the Australian and New Zealand standard because this is the measure most likely to be relied on by the public. Due to the differences in luminous intensity distribution, CFLs may not necessarily be a direct replacement for incandescent sources without some consideration. |
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Authors:
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Gloria S-C Yuen; Alistair B Sproul; Stephen J Dain |
Publication Detail:
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Type: Journal Article Date: 2010-02-02 |
Journal Detail:
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Title: Clinical & experimental optometry : journal of the Australian Optometrical Association Volume: 93 ISSN: 1444-0938 ISO Abbreviation: Clin Exp Optom Publication Date: 2010 Mar |
Date Detail:
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Created Date: 2010-04-21 Completed Date: 2010-07-15 Revised Date: - |
Medline Journal Info:
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Nlm Unique ID: 8703442 Medline TA: Clin Exp Optom Country: Australia |
Other Details:
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Languages: eng Pagination: 66-76 Citation Subset: IM |
Affiliation:
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University of New South Wales, Sydney, Australia. |
Export Citation:
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APA/MLA Format Download EndNote Download BibTex |
| MeSH Terms | |
Descriptor/Qualifier:
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Australasia Conservation of Natural Resources* Cost Savings Electric Power Supplies / economics* Environment Design* Equipment Design Humans Lighting* / economics, instrumentation, methods Models, Theoretical New Zealand Optometry* Radiation Dosage Radiometry |
From MEDLINE®/PubMed®, a database of the U.S. National Library of Medicine
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