LED's efficiency exceeds 100%
Learn About LED Lighting | ENERGY STAR
LED lighting efficacy: Status and directions - ScienceDirect
LED vs. CFL Bulbs: Which Is More Energy-Efficient?
From the OSRAM Laboratory: Efficiency Record for Warm White — LED professional - LED Lighting Technology, Application Magazine
Huge progress on lighting efficiency improvements | ACEEE
Comparison of Energy-Efficient Bulbs | DelMarFans.com | DelMarFans.com
Solved A study was conducted to test the energy saving | Chegg.com
U.S. Energy Information Administration - EIA - Independent Statistics and Analysis
Cree Study Shows LED Lighting is Best Bet for Energy Efficiency — LED professional - LED Lighting Technology, Application Magazine
Top 3 Factors That Affect the Lumen Efficiency of LED High Bay Light
America's Light Bulb Revolution - The New York Times
LED vs. Incandescent & Halogen | Super Bright LEDs
LED Lighting Efficacy: Status and Directions
Survey : Nearly 30% of US Homes Have Ditched Incandescent Light Bulbs - LEDinside
LED Power Output and Efficiency | PPT
Maine Residential Energy Efficient Lighting Solutions | Efficiency Maine
LED lighting efficacy: Status and directions - ScienceDirect
Efficiency of LEDs: The highest luminous efficacy of a white LED - www.dial.de
Energy Efficiency of LEDs
Luminous efficacy - Wikipedia
U.S. Energy Information Administration - EIA - Independent Statistics and Analysis
Luminous efficacy - Wikipedia
