I actually met by chance when looking for a particular photographic part on a similar product like this one. A ring light! An illumination for the macro range. The dream since I have a camera (is quite a while ago) and formerly also very far from cost reasons. I then looked around same something and then I decided to use this copy. For device: It lights up, thanks to the LEDs also very light (for macro shooting). Flash function is also available, but you should not be reinforced. Performs simply a momentary 2x as bright light as in a permanent job. The whole thing with modeling (!!!). Flash / light intensity can be adjusted with rotary knob. Batteries are in the box that you put on the hot shoe, so to speak, the Control Center, and not in the ring light itself. This it is relatively easy to handle and particularly easy. Filter thread adapter 49-77 mm! In my Fuji Finepix with special Filtertubus (KiwiPhoto 72 mm) in slight vignetting strong wide angle, but please who photographed in the macro range with wide angle? My verdict: unit price and 5x Star!