The 300-iii led variable-color on-camera light is one of a series of on-camera led lights from yongnuo digital. The 300iii led on-camera light features bluetooth-based smartphone remote control (via the downloadable app). Up to eight lights can be grouped via the ir remote control or the mobile app.
Designed to work with most dslrs and small camcorders, the 300-iii led on-camera light can be powered using a sony np-f series battery (not included) or an optional ac adapter (not included). A push-button numerical led display shows the remaining battery power. A 5200mah np-f750 battery (not included) will power the light for up to 120 minutes. The 300-iii led on-camera light has three mounting options to your camera via a hot shoe, on a flat surface using the mini plate, or handheld using the included handle.