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ENERGETIC SMARTER LIGHTING 40W Equivalent A19 LED Light Bulb, Warm White 3000K, E26 Standard Base, UL Listed, Non-Dimmable LED Light Bulb, 4-Pack - Amazon.com
2 x Energy Saving 25W Spiral Light Bulb CFL B22 Bayonet 25W = 125W Warm or Cool | eBay
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New Energy Efficiency Standards for Lightbulbs: What You Need to Know | Department of Energy