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New Energy Efficiency Standards for Lightbulbs: What You Need to Know | Department of Energy
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Can I use energy-saving bulbs in cold rooms or outside? Pacific Lamp & Supply Company
Shedding New Light on the U.S. Energy Efficiency Standards For Everyday Light Bulbs - uSaveLED
The Best Energy-efficient Light Bulbs for Your Home
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The 5 Best Energy Efficient Light Bulbs
