Category:Lighting
From GHN
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| + | [[File:Lighting Lamp Attribution.jpg|200px|thumb|left|A high-pressure sodium lamp with a gas discharge taking place in the inner tube - Image by Wikimedia Users Gerben49 and Siebot.]] | ||
| − | + | [[Category:Optical_devices|{{PAGENAME}}]] | |
Revision as of 21:19, 11 October 2012
IEEE GHN Category
