Great TTL Auto Flash Compatibility: Godox AD400Pro is Compatible with Canon E-TTL II, Nikon i-TTL Autoflash, Sony, FUJIFILM, Olympus and Panasonic TTL Autoflash System. With Master＆Slave Function, AD400Pro Can be Used in Combination with Godox TTL Camera Flashes, TTL Outdoor Flashes, etc All-in-One Outdoor Flash: 400Ws Strong Power, 0.01-1s Recycle Time, 12 Continuous Flashes in 1/16 Power Output, 30W LED Modeling Lamp, 390 Full Power Pops, Stable Color Temperature(change within ±75K over the entire power range in color temperature mode) Two Power Supply Methods: 21.6V/2600mAh large capacity Professional lithium battery pack provides 390 full power flashes and recycle in 0.01-1 second. You can also purchase the Godox AD-AC Power Source Adapter to freely choose DC or AC power source Small, Light Weight and Portable: Godox AD400Pro weights 2.1Kg with the small size of 220*102*128 mm(without the flash tube and reflector). With Type-C USB port to achieve firmware upgrade. With 3.5 mm sync cord jack to achieve multiple sync triggering methods Wide Mount Compability: Godox AD400Pro Comes with a Bowens Mount Adapter Ring to Install Bowens-mount Accessories. Remove it, You Can then Use the Godox-Mount to Install Lighter and more Portable Accessories. Purchase adapter rings of other brands to replace more accessories e.g. Broncolor, Profoto, Elinchrom,etc Noted: The WB400P battery will enter a hibernation state after a period of no use, this is an upgraded function to protect the battery performance and extend battery life. When the battery can't be charged, please press the battery button several times to activate the battery (the right part of the battery button). The battery button is next to the battery indicator. If still cannot be charged, please feel free to contact our store service support, and we will help you to solve this problem.

Model:AD400Pro

Wireless Slave Unit Mode:Radio transmission mode(compatible with Canon e-ttl II Nikon i-ttl, Sony, Olympus, Panasonic and FUJIFILM)

Flash Mode:Flash Mode:Slave unit of radio transmission :M/Multi:TTL/M/Multi

Guide No (m IS0 100):72(m ISO 100, with high-efficiency standard reflector)

Flash Duration:1/240 to 1/12820 seconds

POWER:400Ws

Power Output:9 steps:1/256~1/1

Stroboscopic Flash:Provided(up to 100 times, 100HZ)

Flash Exposure Compensation(FEC):Manual. Feb: +3 stops in 1/3 stop increments

Sync Mode:high-speed sync(up to 1/8000 seconds), first-curtain sync and second-curtain sync

Delay Flash:0.01-30 Seconds

Modeling Lamp(LED）：30W/4800K/TLIC:93

Optical Slave Flash：S1/S2

Display：dot-matrix panel

Included Item

1*Flash

1*Flash tube

1*Lithium battery pack

1*Battery charger

1*Power cord

1*Reflector

1*Bowens-mount adapter ring

1*Wrench

1*Instruction manual