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Lightbulbs: Watt-to-lumen guide

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LED Lumens To Watts - The Lightbulb Co. UK

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Feit Electric BPJ78/LED LED R7S, 40W 450 Lumen, 78mm, Double-Ended T3, Halogen Replacement

Lighting 500-Watt EQ LED White Flood Light with Adjustable 4000-Lumen at Lowes.com

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40W Light Bulb Know] - LightWattage

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EcoSmart A19 Halogen Light Bulb (4-Pack) The Home

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