Nissin i40C Flash (Black) Selector dial- Simple operation panel Nissin i40 has two selector dials controls: Function dial and Power dial. The Indicated lamp A/B/C will show the position of adjustment. Even beginners can quickly get started. LED Video light NEW! Nissin i40 has a video light function, which has 9 steps of output level adjustment. Supports high-speed synchronization Syncs up to 1/8,000 seconds shutter speed. Metal hot shoe - Quick release button Durable metal hotshot design with quick release button, easy to install and reduce the chance of damage caused by installation. Soft box Included in Package Softens the flash and reduce shadows, it's suitable for fill-in flash at close distance (can be used with reflector)