The latest flash from the Godox AD family comes with many improvements, TTL functionality, and compact dimensions. It offers 400W flash power with a flash recycle time of 0.01 to 1 second. The modeling light is 30W. You can achieve approximately 390 shots on a full battery charge. The color temperature is 5600K. It is TTL compatible with all major brands. The TTL function is included. The built-in Godox 2.4G Wireless X System makes this flash head compatible with Canon E-TTL II, Nikon i-TTL Autoflash, Sony, Fujifilm, Olympus, and Panasonic TTL. High-speed synchronization is possible at up to 1/8000s. It features master and slave functions. The AD400 can easily be used as a master in combination with other flash units like the Godox AD200 or V860. It can operate on battery or mains power. The Godox AD400 can be conveniently powered by a professional battery (included) or directly via a power cable from an outlet. A full battery charge is sufficient for about 390 shots at full flash power.