120W current-controlled 120VAC portable power source (2) a.c. outlets (a power strip or adapter may be used to plug in more units) 120 V a.c. for use with all standard Paul C. Buff, Inc. flash units .5 Amp USB for charging compatible cell phones and tablets (NOT for use with current iPhone and iPad models) 3-hour rapid charger (supplied) quickly recharges the battery Compact and lightweight design (3.5 lbs. total weight) *Works great with our 2x 4' Quasar Crossfade. Approx 1 hour at maximum output.** Kit Includes: (1) Charger (1) Shoulder Strap (1) Inverter with the battery attached