1. Charles W. Durham School of Architectural Engineering and Construction, University of Nebraska, 1110 South 67th Street, Omaha, NE, 68182
2. DDP Engineered LED Solutions, 445 South Douglas Street, El Segundo, CA, 90245, USA.
3. Department of Civil, Environmental, and Architectural Engineering, University of Colorado at Boulder, Boulder, CO, 80309-0428, USA.