The Profoto AcuteB Head is a mere 3.2 lbs (1.45 kg) and gives you 600 Ws flashes and an innovative modeling light, using a high-performance halogen lamp that, at 65W, gives you the brightness of 90 W. When combined with its fan-free cooling, this translates to longer lasting batteries.For use with the AcuteB battery pack.Item Includes:Disc reflectorFlash tube65 W halogen lampRemovable frosted glass coverProtective transportation cap3 m (10 ft) lamp cable