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GE Lighting 36505 LED Light Bulb, Amber Warm White, 5-Watts, 250 Lumens - 43168365055 | eBay
Sunlite 80557-SU LED R14 Mini Reflector Floodlight Bulb 4 Watts (25W Equivalent), 250 Lumens, Medium (E26) Base, Dimmable, ETL Listed, 30K- Warm White, 1 Pack - Walmart.com
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Lumens to Watts Conversion Chart for LED Bulbs
Lumens and the Lighting Facts Label | Department of Energy
Commercial Electric 2 ft. x 2 ft. 250-Watt Equivalent Integrated LED White Backlit Troffer, 3825 Lumens, 4000K Bright White (6-Pack) BLP-22-U-P-30-40K-80-D-6PK - The Home Depot
Tubular LED Soft White Clear Light Bulb – 250 Lumens (25-Watts) – S. Feldman Housewares
Lumen to Watts: The Complete Guide - RC Lighting
Lumen to Watt Comparison - Energy vs Brightness
led - What is the theoretical limit of lumen/watt for lighting systems? - Electrical Engineering Stack Exchange