This is the Impact Three Monolight Portrait Backlight Kit with 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 700 watt/second kit provides ample power to light a 3 - 4 person full-length portrait.
The VSD300 has cushioned touch-pad function control buttons. Power is adjustable in 1/10 stop increments, from full to 1/8 power. Its model light intensity may be controlled coupled to, or independent from the strobe power levels you select.
The Impact VS300D 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 3 monolight kit includes 2 air cushioned light stands, a short backlight stand, 2- white translucent umbrellas, a 24" square softbox, sync cord (Mini plug to PC) and soft kit case with shoulder strap and movable internal dividers.