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Halogen lamps, explained by RP; operation temperature, halogen cycle, luminous efficacy, energy efficiency
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Amazon.com: SYLVANIA Halogen A19 Light Bulb, 75W Equivalent, 53W Efficient, E26 Medium Base, 1050 Lumens, 2800K Soft White - 4 Pack (50018) : Everything Else
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How different types of electric light - incandescent, halogen, fluorescent, and LED works | Britannica
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