We used a SLM Aminco spectrofluorometer to determine the emission spectra of each light stick used in the experiments (green Snaplight, yellow Snaplight, and yellow Coghlan).  The emission spectra of green Snaplight light sticks reveals a single peak intensity at 516nm.  The two yellow light sticks (Snaplight and Coghlan) have emission spectra that resemble each other but differ in some details. The primary peak intensities were located at 548nm for yellow Snaplights and 549nm for yellow Coghlan light sticks.  Yellow Snaplight light sticks produce more light at the 520nm than yellow Coghlan light sticks, while yellow Coghlan light sticks produce more light at 580nm.