Selens 160 SMD Marco LED Ring Light with 6 Adapter Rings(for Macro Canon/Nikon/Sony/Sigma/Tamron Lens)for Digital SLR Cameras 160 premium LEDS with 45beam angle and 49mm/52mm/55mm/58mm/62mm/67mm adapter rings are included to mount the ring light to the camera's dimmable. Ring light is fully dimmable and spread the light of effects, stepless dimming dial for adjusting light output from 10%~100% Equipped with 1/4'' screw thread to fit for your camera It can provide continuous and stable semi light or full light to meet higher photograph needs Powered by AA1.5VX6 or DC 6-17V(Batteries not included)