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Xtricity Compact Fluorescent Light Bulb T2 Spiral CFL, 4100k Cool White, 9W (40 Watt Equivalent), 540 Lumens, E26 Medium Base, 120V, UL Listed (Pack of 2) - Amazon.com
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Compact Fluorescent Lights | Kids Environment Kids Health - National Institute of Environmental Health Sciences
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Compact fluorescent light bulbs to be phased out under new Biden rule that aims to push toward LEDs | CNN Politics
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