Features:Innovative LED technology, high-quality LED light gives out gentle light which is close to natural light, 7 brightness modes can meet higher photograph needs.With a controller which has LCD display and buttons for quick and precise adjustment for brightness and mode.The left flash and right flash function makes objects in pictures appear more dimensional.8 ring adapters, compatible with most cameras with different lens.30s sleep mode can save energy and be triggered to work mode by pressing any button or shutter.A helpful accessory kit for photograph lovers, good for producing high quality photos.Specification:Brand: MeikeModel: FC-100Material: PlasticPower Supply: 4 x AA Batteries (Not Included)Brightness Mode: 7Flash Mode: 4 (Constant illumination; All lights flash; Right lights flash; Left lights flash)Flash Guide Number: 15Color Temperature: 5000k Flash Range: 5cm-1.5mExposure Time: 1/1000secRing Adapter Diameter: 40.5mm, 52mm, 55mm, 58mm, 62mm, 67mm, 72mm 77mmWeight: Approx. 329gApplication:for Canon: EOS 1D/1Ds Series, 7D/5DMarkII/60D/50D/40D/30D/20D/10D/550D/500D/450D/400D/350D/300Dfor Nikon: d90/d80/d700/d300/d200/d300s/d7000/d5100Package Included:1 x LED Ring Light1 x Flash Controller8 x Ring AdaptersCamera is not included.