Profoto's AcuteB2 600Ws AirS LiFe Power Pack supplies 600Ws of portable flash power in a compact, lightweight (7.9 lbs/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 4 times the battery life of previous batteries. Plus, the built-in Profoto AirS radio sync receiver provides control from up to 980' (300 m) away (with AirS radio 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.
| Maximum Watt/Seconds | 600 |
| Guide Number | f/64.2 @ 2 m (ISO 100) with Magnum reflector |
| Recycle Time | 0.08-2.0s @ full power |
| Flash Duration | 1/1000 sec @ maximum power, 1/6800 sec @ minimum power |
| Flash Variability | 7 f/stops from 600 to 9 w/s |
| Voltage Stabilization | Not specified by manufacturer |
| Head Outlets | 1 |
| Flash Ready Indicator | Battery Status, 1/1, 3/4, 1/2 and 1/4 power, Ready Light, Switchable Audible Beep |
| Battery | LiFe battery: 13.2 V, 4.6 Ah, LiFePo4 |
| Sync Voltage | Compliant to ISO 10330 standard |
| Built-in Slave Cell | Yes |
| Circuit Protection |
Thermostat slows recharging Resets automatically |
| Auto Dump | Yes |
| Dimensions | 7.5 x 5.3 x 7.9" (19 x 13.5 x 20 cm) |
| Weight | 7.9 lbs (3.6 kg), including LiFe battery |