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Incandescent Light Bulbs May Have a Bright Future After All | Smart News| Smithsonian Magazine
Incandescent light bulb - Wikipedia
Light Bulbs & More, Inc.
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MIT's new warm incandescent light bulb is nearly 3x more efficient than LEDs
4 Types of Light Bulbs: Which is More Energy Efficient
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Light Bulbs That Help You Sleep - The New York Times
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LED vs CFL Bulbs: Which Is Most Energy Efficient? | Perch Energy
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