Halogen lamp - Wikipedia
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Halogen lamp - Wikipedia
File:Halogen lamp macro 01.jpg - Wikimedia Commons
File:Philips H8 12V 35W.jpg - Wikimedia Commons
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Tungsten Halogen Lamp
Halogen lamp - Wikipedia
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File:LED bulbs 2012.jpg - Wikimedia Commons
Incandescent light bulb - Wikipedia
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Halogen Lamps, Tungsten Halogen Gas Filled Lamps | ILT
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Halogen lamps, explained by RP Photonics Encyclopedia; operation temperature, halogen cycle, luminous efficacy, energy efficiency
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