This is an Interfit Stellar Xtreme AC/DC Monolight Kit. It includes a 300 watt/second monolight, battery pack with charger and a light stand that rises to a maximum height of 8' (2.4 m).
The Stellar Xtreme has been built to full professional specifications for long life and reliable service. With an almost go anywhere battery pack you can now get that important shot in poor lighting conditions, in or outdoors. The "S" Type accessory fitting works with all Interfit accessories such as the Pro range of softboxes.
The rear control panel has the grab handle, flash and modeling lamp intensity controls, and switches that allow the choice of audible or silent recycling indication. The panel also has the modeling lamp control and the AD/DC control switch.
The battery pack may be charged while the monolight is plugged in and used with AC power. Its charger is multi-voltage (with appropriate optional adapter plug) and will recharge the battery in 6 - 8 hours. With a full charge, the battery will provide ~100 full power pops, and 300+ pops at minimum power.