Godox QS400II (Bowens) The Godox Studio Flash QS400II is equipped with a built-in wireless 2.4G X system. With this you can not only trigger the flash head, but you can also set the flash power, thanks to the optional X1 Trigger, or the XT16 and FT16 power remotes. The QS400II has a recycle time of 0.3 to 1.5 seconds and a flash duration of 1/2000 to 1/800 of a second. Simple and convenient operation The operation of the Godox QS400II is very simple by means of the push buttons and the easy-to-read LCD screen on the back of the flash head. You can adjust the flash power in 50 steps from 1/32 to full. The modeling lamp has a power of 150 Watt and its brightness can be adjusted from 5 to 100%.