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GE Ultra Bright LED 250-Watt EQ Daylight Medium Base (E-26) Dimmable Light Bulb at Lowes.com
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Feit Electric LED 33 Watt (300 Watt Eq.) Color Selectable Light Bulb, A23, Medium Base, Non-Dimmable - Walmart.com
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BlueX PAR38 LED High-Power Bulb - 32W (250 Watt Equivalent) 3300 Lumens E26 Base 5000K Super
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Cree First to Break 300 Lumens-Per-Watt Barrier - Off-topic Chatter - BudgetLightForum.com
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US Government to Crank Lightbulb Efficiency Up to 120 Lumens Per Watt
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Ledrise - High Performance Led Lighting Luminous Efficacy and Useful Lumens: A Comprehensive Guide to Efficient Lighting Design
Centrifuge Lighting LED Light Bulbs, A19 General Purpose (40 Watt Replacement LED Light Bulbs), 450 Lumen, Medium Base Light Bulbs, Soft White, (8 Bulbs) - Amazon.com
Lumens per Watt & LED Efficacy - Aurora Lighting Presents - YouTube
