U.S. Department of Energy- ENERGY.GOV
Office of Energy Efficiency & Renewable Energy
Report estimating LED energy savings between 2012 and 2014 in 10 applications where LEDs competed with traditional lighting sources such as incandescent, halogen, high-pressure sodium, and fluorescent. The analysis includes indoor lamp, indoor luminaire, and outdoor luminaire applications.
In order to read whole document, please click on following link.