Mt Godox AD600BM Witstro Manual All-In-One Outdoor Flash

600Ws Monolight, Li-Ion Battery Powered
Up to 500 Full-Power Flashes per Charge
Manual Control of Flash Functions
Built-In 2.4 GHz Wireless X System
1/256 to 1/1 Power Control
0.01-2.5 sec Recycling Time
Flash Durations: Short as 1/10,000 sec
1/8000 sec High-Speed Sync
Optional AD-H1200 Head Gives 1200Ws