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Commercial Electric 15 in. 22.5-Watt White Integrated LED 1650 Lumens Edge-Lit Round Flat Panel Flush Mount Ceiling Light w/Color Changing 74212/HD - The Home Depot
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Commercial Electric 15 in. 22.5-Watt White Integrated LED 1650 Lumens Edge-Lit Round Flat Panel Flush Mount Ceiling Light w/Color Changing 74212/HD - The Home Depot
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Maxxima Dimmable A19 LED 1650 Lumens 100 Watt Equivalent Warm White 2700K 15 Watt Light Bulb, Energy Star (4 Pack) - Amazon.com
LED light bulbs are rated in watts & lumens but not efficiency. How do you determine the efficiency? Is there a rating of useful light to input? - Quora
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