U.S. Energy Information Administration - EIA - Independent Statistics and Analysis
By 2020, LEDs May Rival Incandescent Bulbs in Cost Without Rebates | Greentech Media
LED vs. CFL Bulbs: Which Is More Energy-Efficient?
Household savings: LED bulbs gaining in cost efficiency
LED lights: an economical and long-lasting solution - Stanpro
LED lighting efficacy: Status and directions - ScienceDirect
Lighting your way to energy efficiency | Wright-Hennepin
LEDs: The Future Is Here | BuildingGreen
Maine Residential Energy Efficient Lighting Solutions | Efficiency Maine
Campus-wide Lighting Retrofits Save Time and Energy | Campus Planning & Operations
Details of the 200lm/W TLED Lighting Technology Breakthrough Unraveled — LED professional - LED Lighting Technology, Application Magazine
Energy Efficiency of LEDs
America's Light Bulb Revolution - The New York Times
White LEDs with super-high luminous efficacy could satisfy all general lighting needs
What is LED Efficacy? - LED Direct
LEDinside: LED Light Bulbs Evaluation (40W Incandescent Light Bulbs)- Luminous Flux - LEDinside
Efficiency of LED Lighting | Stafford Home Service | Blog
LED Home Lighting Energy Savings Guide | USAI
Top 3 Factors That Affect the Lumen Efficiency of LED High Bay Light
TAM ENERGY
LED's efficiency exceeds 100%
Efficient LED lighting systems - Save energy with TRILUX
