2000 w/s, with 6' AC and 16' sync cables. The Dynalite AP2000 Arena 2000 Watt/Second Power Pack has three head outputs and one stop power dial-down. This power supply is ideal for the photographer who wants a lot of power with minimal packing size and weight.Since 1969, Dynalite has been recognized as the strobe equipment with power and performance in a small, lightweight package. Whether it is conventional or digital, in the studio or on location, Dynalite is a very respected name in lighting.