Use this slave flash for main, fill or background lighting. Removable components let you vary the lighting coverage to match just about any shooting situation, from ultra-wide to concentrated beam. Out of the box, it has a wide-angle lighting pattern. Remove the cup-shaped diffuser to narrow the coverage. When the internal reflector is inverted, the bare bulb creates an ultra-wide 310° coverage; with reflector extended, the light is concentrated for 45° angle of coverage. The built-in slave sensor fires unit at distances up to 80 ft. from the master flash. A 2-position switch synchronizes the slave with both single flash and multiple-flash bursts from most digital and 35mm cameras. Optional PC Cord 130620 provides direct connection as an alternative to slave triggering. Flash is rated at 60 watt-seconds of power, has a standard household light bulb base, attaches to any AC socket or AC slave flash holder, and has a test flash button. 130610 Filter Set includes dome-shaped red, blue, green and orange filters and frosted diffuser that replace standard diffuser.