The U.S. Department of Energy (DoE) recently published a report, 2015 U.S. Lighting Market Characterization, an excellent resource for lighting market analysis and business planning.
One thing is clear: The lighting market has undergone significant transformation since the last DOE characterization in 2010.
Click here to read an article I wrote summarizing the report, which was published in the March 2018 issue of ELECTRICAL CONTRACTOR.