- Cooling and lighting control system (constant 50W lighting, no flicker or colour shift) - 660 PRO II RGB breaks the minimum brightness limit from 1% slight bright (brightness and power can reach a true 1%) to 100% ultra bright, as well as 3200K-5600K colour temperature and 360° full RGB range, all ensuring smooth and precise adjustment, ideal as a key light or fill light. Power and brightness remain consistent when adjusting tone/colour temperature - CRI97+, 7000lux@0.5m illumination - RGB lights have 360° full colour lighting for enhanced filming background - 9 presets: Police Car, Ambulance, Fire Truck, Fireworks, Party, Candlelight, Lightning, Paparazzi, and TV Screen - Bluetooth enabled video lights support smart app control. Download the “NEEWER” app on your smartphone and use it to control one light or several lights all together by selecting channels (1-8/ALL) from up to 49' (15m) away, and save two favourite lighting presets. Operating system requirements: Android 4.3 or later/iOS 11.1 or later - Aluminum alloy panel mechanism ensures better heat dissipation and prolongs the working hours. - Lights can be powered two ways: AC adapter (included) when shooting indoors, or NP-F550 NP-F970 li ion battery power supply (battery not included) - A carrying bag is also included to carry and store all items in the kit - Two tripod light stands with adjustable height from 3'/92cm to 6.6'/200cm. A U shaped bracket holds the light while connecting it to the stand. Capable of tilting 180° on the bracket. - The four way barn doors help modify the beam angle, a removable diffuser brings a delicate and stunning lighting effect