This is a complete Dynalite Uni 400 Two Monolight Kit. It has everything needed on location or in the studio. It provides a total of 800 watt/seconds of power.The AC/DC powered Uni400JR is a versastile monolight. It can operate on standard 110V AC current. Connected to the Jackrabbit II high voltage battery pack, the Uni400JR operates wherever AC power is not available or convenient. With a fully charged pack, up to 150 full-power flashes are possible... up to 400 at its lowest setting.This kit is complete with two- three-hour multi-voltage chargers, compact light stands, umbrellas and a sturdy travel case for storage or transport.