This is the Impact Three Monolight Portrait Backlight Kit without Case (120VAC).
Two of the key monolights in this kit offer a maximum of 300 watt/seconds each. The third monolight offers 100 watt/seconds, and is useful as a background, or hair light. Each monolight has the ability to adjust flash levels from full to 1/8 power. Each monolight has a 100 watt modeling light to aid in adjustment and placement. This kit provides ample power to light a 3 - 4 person full-length portrait.
The Impact VSD300 and EX100A are good units for occasional use by a hobbyist, or beginning professional. Their built-in optical slave fires the flash without wires, from the light of any other flash system. Their flashtubes are good for tens of thousands of pops, and are replaceable.
This 700 watt/second, 3 monolight kit includes 2 air cushioned light stands , a short backlight stand, 2- white translucent umbrellas, a 24" square softbox, and sync cord (Mini plug to PC).