Combines the best features of a Dyna-Lite flash head and a Dyna-Lite power pack in one self-contained 400w/s unit that operates either on AC or with the optional Jackrabbit battery unit for field operation. Its average power consumption is 8 amps (120V) with 10-volt sync voltage. Full-power flash duration is 1/700 sec. and the unit offers 1/10-stop flash consistency. A great add-on light or stand-alone portable system, the Uni400JR accepts all Dyna-Lite flash head accessories.Uni400JR features include: