2000 w/s, wireless radio, with 6' AC & 16' sync cables. The Dynalite SP2000 is a small, lightweight 2000 watt/second strobe power pack that includes a built-in Pocket Wizard brand radio slave receiver, and six f/stops of dial-down variability on the main power variator. This pack can divide power to its four power outlets with the Ratio/Combined Output Switch. An indicator light indicates whether your power is routed symmetrically or asymmetrically between the "A" and "B" flash head outlet banks. Power may be dialed down from 2000 to 250 w/s.