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[[File:Lighting Lamp Attribution.jpg|200px|thumb||A high-pressure sodium lamp with a gas discharge taking place in the inner tube - Image by Wikimedia Users Gerben49 and Siebot.]]
[[File:Lighting Lamp Attribution.jpg|200px|thumb|
Latest revision as of 16:13, 6 March 2013
The production of visible light
Pages in category "Lighting"
This category contains only the following page.