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: Meike Model: FC-100 Material: Plastic Power Supply: 4 x AA Batteries (Not Included) Brightness Mode: 7 Flash Mode: 4 (Constant illumination; All lights flash; Right lights flash; Left lights flash) Flash Guide Number: 15 Color Temperature: 5000k Flash Range: 5cm-1.5m Exposure Time: 1/1000sec Ring Adapter Diameter: 40.5mm, 52mm, 55mm, 58mm, 62mm, 67mm, 72mm 77mm Weight: Approx. 329g Application: for Canon: EOS 1D/1Ds Series, 7D/5DMarkII/60D/50D/40D/30D/20D/10D/550D/500D/450D/400D/350D/300D for Nikon: d90/d80/d700/d300/d200/d300s/d7000/d5100 Package Included: 1 x LED Ring Light 1 x Flash Controller 8 x Ring Adapters Camera is not included.