YONGNUO YN300 YN-300 Air LED Camera Video Light with Adjustable Color Temperature 3200K-5500K for Canon Nikon Pentax Olympas Samsung+EACHSHOT Microfiber Cleaning Cloth Adopts SMD LED as light source which provides soft light and wide illuminating angle,and it makes YN300 Air video light much suitable for filling light from a close distance. YN300 Air adopts ultrahigh CRI LED.RA average value is greater than 95 and close to natural light,which restores the color of the subject perfectly. Ultra thin, YN300 Air supports using NP-F lithium battery or external 8V,5A DC power. .YN300 Air adopts LED constant-current driving technology which is specially developed for light supplement;light ripple,st-robing,jitter and other undesirable phenomena can be avoided during the shooting. YN300 Air adopts encoder for digital dimming;it can be divided into coarse tuning mode and fine tuning mode;dimming result is accurate and reliable.