The GS300II 300Ws Monolight from Godox is a versatile flash head with solid core and convenience features. The strobe has power that's variable from 1/32 to 1/1 and recycling times from 0.3 - 1.5 sec. The 150W modeling light can be set to Proportional to mimic the effects of the flash's power setting for pre-visualizing your photo, or it can be adjusted from 5 - 100% output. Both the power and the modeling light can be adjusted remotely with the separate purchase of a transmitter, since the head has a built-in 2.4 GHz wireless receiver. The optional XT16 or FT-16 transmitter will give you wireless triggering of the flash head. Settings are visible on the flash head's digital readout. The GS300II has a Bowens front accessory mount that allows it to use not only Godox modifiers, but also accessories from the many manufacturers that use this popular mount. The GS300II ships with a tilting umbrella bracket, glass protection dome, and a lamp cover.