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 centre 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. All the Godox triggers are compatible with the separate purchase of B&H # IMPCMSMM18, MFR # 10032380.