American DJ Mobile Beam Sys Linkable DJ Lightsboth lights' internal fans spin up and run without issue. one light runs a test sequence and then stays dormant. it seems to respond in link mode but not by itself. A American DJ Mobile Beam Sys Linkable DJ Lights in Very Good condition! At Evolution Music, we attempt to highlight cosmetic defects (if any) by picturing every angle of every piece of gear so you know exactly what you are getting. We always picture any and all accessories too. What you