There are four Basic Packs to choose from. There are two 400ws Packs with settings from 6ws to 400ws, Fast and X-tra Fast. All Basic Packs have a four light Battery Gauge and two Head Jacks.
|Power (Watt Seconds)||400|
|Guide Number||163 @ 10 Feet with ISO 100|
|Flash Head Outlets||2|
|Weight & Size||3.2 lbs (1.5 Kg)
6 x 3 x 7.4" (15.2 x 7.6 x 18.7cm)