Aputure Amaran Halo AHL-HC100 CRI 95+ LED Macro Ring Flash Light for Canon DSLR Camera Higher CRI value (CRI 95+), more natural color render. CRI 95+ has applications in areas where color differentiation is crucial The brightness is up to 1020 lux at 0.5 meter / 19.7inches and color temperature is very steady (5500k200k). Flicker-free in light mode, perfect for shooting video Stepless dim with precise output It has three brightness levels : one quarter, half and full. Easy to master brightness output AF-assist lighting Half press shutter to activate AF-assist lamp to make focus much easier. Work with flash triggers as a off-camera flash