The free Sidus Link app makes it possible to utilize tools unique to the Aputure and amaran ecosystems, such as Source Match, Color Picker, and Custom FX. The F21x can also be controlled using DMX with a separately available USB-C to 5-Pin DMX512 in & out adapter cable, adding professional-level control to an individual unit or groups of lights. The amaran F21x is ideal for videographers who need a versatile and literally flexible lighting solution. The bi-color flexible panel gives users unmatched strength and control over a wide, expanded CCT range to match a variety of white light environments. 

The control box is a multi-voltage AC power supply that also features a V-Mount battery plate for use with compatible 14.4V, 26V, or 28.8V batteries. Full output can be achieved when using the AC power supply, using batteries allows the F21x to be used at either half-power or full-power, depending on battery strength.