Wireless Studio flash 1.Output:480ws 2.Power:7 f-stop (1/64-1) 3.Sleek and stylish exterior 4.Fast refresh rates ... 't it perfect?Detailed parameters Modeln flash 280An flash 480AOutput power280ws480wsPower range7 f-stop (1/64-1)Stroboscopic numbers5,10,15,20,25 ... saving mode)BuzzYes (ON/OFF)GN 56Color temperature5500K±200KHigh speed flash durationFP-1/11000, F2-1/9000, F3-1/6000,F4-1/4000, F5-1/2000