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led - What is the theoretical limit of lumen/watt for lighting systems? - Electrical Engineering Stack Exchange
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300 Watt NextGenII LED Flood Light– 40,000 Lumen – Super Efficiency 130 Lumen to Watt - 5000K Bright White - Replaces 1000W HID or Metal Halide - No Photocell - UL & DLC Premium - 10KV Surge - - Amazon.com
Luminous Efficacy | JDRM Engineering, Inc.
Ledrise - High Performance Led Lighting LED luminous efficacy (lumens per watt) explained
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Details of the 200lm/W TLED Lighting Technology Breakthrough Unraveled — LED professional - LED Lighting Technology, Application Magazine
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100 Watt LED Wall Pack Light - 14,500 Lumens - 5000K Bright White - High Efficiency 140 Lumen to Watt- DLC Premium Listed - Dorado III Series - Without Photocell - - Amazon.com
LED lighting efficacy: Status and directions - ScienceDirect
LED Lighting Efficiency Jumps Roughly 50% Since 2012
U.S. Energy Information Administration - EIA - Independent Statistics and Analysis
