A versatile lighting tool, the Godox Witstro Ring Flash AR400 is a distinctive light source with a signature near-shadowless look that is not only a flash unit but an LED light as well. The included camera mount allows you to position your DSLR's lens in the open center to take full advantage of the flash's effects. The AR400's diffusion cover is provided for those who want a softer rendition. As a ring flash, the AR400 has 400Ws of power with a guide number of 118, recycling in 0.05 to 3.4 seconds, and power that's variable from 1/1 to 1/128. Thanks to its integrated LEDs you can also use as a 5600K video light that has an output of 440 lux at 1.6'. Settings are displayed on the light's LCD control panel. The AD400 runs on an internal, lithium-ion battery that will give you up to 245 full-power flashes on a full charge. An optional remote is available for wireless control. Flash Head and LED Light Combination The AR400 is a shadow-free, open-center, and ring-shaped flash head that you can shoot through with your DSLR's lens. It's also a dimmable video light thanks to its integrated LEDs. Power and Multi-Function Performance The 400W AR400 has 22 steps of power control (1/1 to 1/128). It supports S1/S2 slave triggering, RPT stroboscopic flash, and high-speed sync. Lithium Battery The AR400's 11.1V / 4500mAh lithium-ion battery provides 450 full-power flashes with a recycle time of 0.05-3.4 seconds.