The Godox AD200Pro Witstro TTL Flash Kit include 3 kinds of flash tube and adopts Godox 2.4G wireless X system. When using Godox 2.4G wireless X system of camera, AD200Pro can be triggered by X2 / X1 / XPro series flash trigger in TTL / M / Muilt mode,etc. AD200Pro can also use in combination with Godox TTL camera flashes , TTL outdoor flashes, TTL studio flashes,etc. Your shooting will become more smooth and simpler. Compatible wireless TTL system Lightweight and portable Changeable flash head - Speedlite flash hand amp; Bare bulb flash head High quality AV panel Built-in 2.4G wireless transmission Power adjusts from full power to 1/256 in 81 levels 1/8000s high speed sync flash amp; high speed sync triggering SPECIFICATIONS BrandGodoxModelAD200ProPower 200WsColor Temperature5600KCompatible Cameras Canon , Nikon , Sony , Fujifilm, OlympusGuide no. (1/1 Output)Speedlite Flash Head: 52 (m ISO 100, @35mm)Bare Bulb Head: 60 (m ISO 100 , with the AD-S2 standardreflector , @28mm) Flash DurationSpeedlite Flash Head: 1/220 to 1/15380 secondsBare Bulb Head: 1/200 to 1/1350 secondsPower Output 9 steps : 1/256 ~ 1/1 , in 1/10 th stop incrementsStroboscopic FlashProvided , up to 90 times , 99HzRecycle Time0.01 to 2.1 SecondsFlash Delay0.01 to 30 SecondWireless Flash FunctionSlave , OffChannels32Groups 5 (A, B, C, D, E)Wireless Range100mMounting1/4 #34;-20 Female ThreadsPower SupplyLithium Battery 14.4V . 2900mAh)Dimensions172 x 75 x 54 mm (without Flash Head)Weight 0.59 kg (without Flash Head amp; Battery)