The U.S. Department of Energy (DOE) has published a new report that documents early challenges and lessons learned in the development of the SSL market. Entitled Solid-State Lighting: Early Lessons Learned on the Way to Market, it summarizes early actions taken by DOE and others to avoid potential problems that were anticipated based on lessons learned from the market introduction of compact fluorescent lamps (CFLs). The report also identifies issues, challenges, and new lessons that have been learned in the early stages of SSL market introduction.