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Category:Lighting

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A high-pressure sodium lamp with a gas discharge taking place in the inner tube - Image by Wikimedia Users Gerben49 and Siebot.
A high-pressure sodium lamp with a gas discharge taking place in the inner tube - Image by Wikimedia Users Gerben49 and Siebot.

The production of visible light

Pages in category "Lighting"

This category contains only the following page.

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