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Rechargeable LED Bulbs,Dimmable light bulb with remote control,USB interface energy saving light bulb,Suitable for E26 lamp holder,Battery powered light bulbs use a USB cable,For bedrooms,tents,etc - Amazon.com
A guide to choosing energy saving light bulbs - Saga
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Message to Warren: The Light-Bulb Revolution Teaches that Energy Efficiency Doesn't Mean Sacrifice
Lighting Choices to Save You Money | Department of Energy
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