Lampu bohlam: Béda antara owahan

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Larik 4:
Lampu pijar dipunpasaraken ing pinten-pinten macem bentuk<ref name="buylighting">(en){{cite web | title=buylighting.com: Incandescent Light Bulbs | url=http://www.buylighting.com/Incandescent-Light-Bulbs-s/165.htm | accessdate=2010-04-23}}</ref> lan kasedia kangge tegangan ([[voltase]]) kerja ingkang bervariasi saking wiwit 1,25 volt<ref>(en){{cite web | title=Round MES Type (E10) : Small Bulbs & Lamps : Maplin | url=http://www.maplin.co.uk/Module.aspx?ModuleNo=1977 | accessdate=2010-04-23}}</ref> hingga 300 volt.<ref>(en){{cite web | title=GE 16317 50A19 at eLightBulbs.com | url=http://www.elightbulbs.com/GE-16317-50A19-A19-Light-Bulb | accessdate=2010-04-23}}</ref>
Energi [[listrik]] ingkang dipunbetahaken lampu pijar kangge ngasilaken cahya ingkang terang langkung ageng dipunbandingaken kaliyan sumber cahya ndamel sanesipun kaliyan [[lampu pendar]] lan [[diode cahaya]], mila secara bertahap ing pinten-pinten negara peredaran lampu pijar wiwit dipunwatisi .<ref>(en) {{cite web | title=LED Efficiency Comparison | language=Inggris | url=http://www.ecoledlighting.com/docs/LEDEfficiencyComparison.pdf | publisher=EcoLEDLighting.com | filetype=pdf | accessdate=2010-05-02}}</ref><ref name="negara_pembatasan_lampu">(en){{cite news|url=http://www.dailymail.co.uk/news/article-1107290/Revolt-Robbed-right-buy-traditional-light-bulbs-millions-clearing-shelves-supplies.html|title=Revolt! Robbed of their right to buy traditional light bulbs, millions are clearing shelves of last supplies|last=Derbyshire|first=David|date=7 January 2009|publisher=The Daily Mail|accessdate=2010-04-10}} Untuk daftar negara lihat pada bagian "What Happens Overseas?"</ref>
Ing sisih mupangati cahya ingkang dipunkasilaken, pinten-pinten penggunaan lampu pijar langkung mupangati benter ingkang dipunkasilaken , tuladhanipun inggih punika pemanas kandang [[ayam]], <ref>{{cite paper | author=Edlyn, Edith; Surisdiarto; dan M. Halim Natsir | title=PENGARUH PENGGUNAAN TEPUNG AFKIRAN KACANG SHANGHAI SEBAGAI PENGGANTI JAGUNG DALAM PAKAN TERHADAP PENAMPILAN AYAM PEDAGING | date=2008 | publisher=Laboratorium Lapang Fakultas Peternakan Universitas Brawijaya | url=http://pakan-ternak.brawijaya.ac.id/index2.php?option=com_content&do_pdf=1&id=59 | format=[[PDF]] | accessdate=2010-04-10}}</ref> dan [[Inframerah#Bidang Industri|pemanas inframerah]] dalam proses pemanasan di bidang industri.