1.Two color temperature options for YN900 LED video light. White model, adopts 900 pieces of 5600K color temperature light beads. Bio-color model, adopts 448 pieces light beads of 3200K color temperature. So you can adjust the color temperature from 3200K to 5600K, which is more useful. 2.YN900 is equipped with a multi-channel wireless remote control which is used to adjust the light intensity and control the switch of YN900. Moreover, it is very convenient to use this controller to control the light intensity and switches of 8 groups of video lights. 3. A mobile APP is available on our official website. With this mobile app, you can control this LED video light with your mobile phone, read the current light intensity and channel setting, and control the light intensity and switches of 8 groups of video lights individually. You can control your LED video light as you need. 4.YN900 is equipped with Type-D flashlight holder which is very convenient for you to attach and use YN900 on different kinds of flash mount. 5.YN900 adopts YONGNUO exclusive LED driving technology which greatly helps to effectively avoid ripple and strobe flash. 6.YN900 adopts digital encoder dimming system, including coarse adjustment mode and fine adjustment mode. 7.On the LED digital display screen of YN900, the parameter of output power is self-explanatory. 8.YN900 supports external DC power input (power adapter is optional), allowing you to take photos for a long time. 9.YN900 adopts forced fan heat diffusion, which solves the heating problem caused by the long time use of LED video light. 10.Two pieces of color temperature filters are equipped, can be used in different circumstances. Features: Illuminated with video light Light source: 900 LED beads Luminance angle: 55 Color temperature: 3200-5600K Mobile phone distance Distance: >20m Mobile phone remote control system: Support Android 4.3 and above and Bluetooth 4.0 and above and ISO 7.0 and above mobile phone Remote control distance: >20m Output power: 54W Lumen: 7200lm Average life: approx. 50000h Power supply: two NP-F lithium batteries or an external 19V or 5A DC power supply (not included) Compatible battery: for Sony NP-F series (Battery not included) NP-F750 NP-F550 NP-F530 NP-F970 NP- F330 NP-F950 NP-F570 NP-F770 NP-F770 NP-F960 NP-F930 NP-F930/B NP-F970/B -AC Adapter Plug Type: EU Plug Input: AC 100-240V 50/60Hz 2a (max.) Output: 19V 5000MA Power cord length: 1.9m / 6.3ft Plug cord length: 2.8m / 9.2ft Note: Battery is not included. Package List: 1*YN900 Video Light 1*Lamp Holder 2*Fliters 1*Remote Control 1*Power Adapter 1*Power Cord 1*User Manual (Chinese and English)