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Philips LED ED28 Non-Dimmable Light Bulb: 5000-Lumen, 3000-Kelvin, 40-Watt (100-Watt Equivalent), E39 Mogul Base, Daylight, 1-Pack
![Luminous efficacy [lumen/watt] of all lights included in the test sample. | Download Scientific Diagram](https://www.researchgate.net/publication/228904625/figure/fig1/AS:341309635219456@1458385966148/Luminous-efficacy-lumen-watt-of-all-lights-included-in-the-test-sample.png "Luminous efficacy [lumen/watt] of all lights included in the test sample. | Download Scientific Diagram")
Luminous efficacy [lumen/watt] of all lights included in the test sample. | Download Scientific Diagram
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Westinghouse 20000-Lumen 200-Watt Black Line Voltage Hardwired LED Flood Light in the Spot & Flood Lights department at Lowes.com
led - What is the theoretical limit of lumen/watt for lighting systems? - Electrical Engineering Stack Exchange
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Lumen: Definition und Erklärung | Lampe Magazin
