External Power Supply
It is recommended to use a YONGNUO power adapter (optional) with the YN300 III which allows you to operate the light with AC Mains Power. When using external power supply, the video light will stop the battery power supply automatically and will not get the battery charged. The external power supply interface outside is positive and the interface inside is negative. The input voltage is 8V and the electric current is 5A. Note: If YN300 III defective when it is used with power adapter of other brands, YN300 III will no longer be guaranteed for repair.
Remote Control with Mobile APP
The product supports mobile phone remote controlling (supports Android4.3 and bluetooth 4.0 version / IOS7.0 and iPhone4S and above mobile phone),APP can be downloaded from the YONGNUO official website or through the dimensional code scanning on the gift box.
Remote Dimming Mode
The wireless remote controller attached can adjust the luminous intensity and control the switches of YN300 III. The maximum remote controlling distance is upto 15 meters.
Compatibility
Almost all DSLR cameras and camcorders by popular brands such as Canon, Nikon, Pentax, Olympus, Samsung, Panasonic and JVC etc.. are supported. Except Sony & Minolta (Hot shoe adapter is required)