The Acute2 and 2R generation of 1200 and 2400w/s symmetrical/asymmetrical power packs have faster recycling times and significantly shorter flash duration than its predecessors.Control improvements include proportional modeling light adjustments, an "On/Off" switch for the photo pack and an "On/Off" switch for the photo slave. The packs offer multivoltage capabilities, you can use the packs anywhere in the world.Acute 2 1200w/s power packtwo Acute 2 headsuncoated flash tube250w halogen modeling lampUV-coated removable frosted glass coverstandard zoom reflectorlight stand adapterprotective transport cap16' (5m) cablecase