... RF 550 Series Macro Led Ring Flash Light for dslr Visual LCD display with high definition flash ... and operation 7. Eight diameters of adapter rings for alternative use 49mm,52mm,55mm,58mm,62mm,67mm,72mm ... , 77mm8. Four colors of flash diffusers for alternative use orange,blue, oyster white, and transparent ... ,000 batteries, 50,000 grips, 5,000 solutions and 5,000 flash lights every month.