This unit fits onto any camera's hot shoe, and it emits an infra red beam which ensures triggering of all Monolights and AC Strobe Power Packs that have an infra red receiver except Dynalite.
Triggers an infra red receiver -- built-in, or added on to your monolight or power pack.
Triggers, even from a Canon's hot shoe, which usually has problems with other brands of infra red triggers.