The Impact SF-AE56 AC Master/Slave 2 Flash Kit
includes 2 SF-AE56 AC Slaves that screw into the provided umbrella sockets or any household fixture. Two umbrellas have been provided as well as two 6.0' light stands to support them. Since the flash can be used as either a master or slave, a 15' 3.5 mm mini jack sync cord is included with each flash in the kit to trigger your master flash from the camera which will in turn trip the second SF-AE56. This lightweight, flexible lighting setup is appropriate for just about any type of photography.