Profoto recently announced a new kind of wireless flash called Profoto B1 500 AirTTL. This new flash is referred to by the company as off-camera flash because “it is not a speedlight and it is not a monolight – but a new kind of flash that brings a whole new way of shooting”.
One of the great advantages of this new unit is the combination of power and portability which are based on the unit’s exchangeable Lithium-Ion battery (14.4V/3Ah) good for no less than 220 full power flashes and its max energy of 500Ws (you can see some of this power shooting models against the sun in the videos above and below).
Below is another (much shorter) hands on video by photographer Mark Wallace
And finally an official video by Profoto with photographer Richard Walch who took the flash to a mine in Italy to shoot action in the dark