Profoto's AcuteB2 600 AirS/R Power Pack w/Pocket Wizard supplies 600Ws of portable flash power in a compact, lightweight (7.9 lb/3.6 kg) package, with the most advanced long-life battery (a Lithium Ion Iron Phosphate, or LiFe, battery) now available. The AcuteB2 gives you everything you want in portable power--up to 200 flashes at full power, super fast recycle time (0.08-2.0 seconds), flash duration as short as 1/6800s, and variability over a range of 7 f-stops (9-600Ws). The LiFe battery gives you up to four times the battery life of previous batteries. The built-in Profoto AirS radio sync receiver provides remote synch from up to 980' (300 m) away (with AirS radio trigger, available separately), plus a Pocket Wizard receiver is built-in, giving you full remote control over the flash (with Pocket Wizard trigger, available separately).
The AcuteB2 has been tested, certified and licensed for travel according to the UN manual of Test & Criteria, and the included multi-voltage charger allows you to charge the battery on any AC current, ensuring that you'll be able to work anywhere in the world.