In a good price-performance ratio, this luminaire is suitable for rather than ring light with 7 separate brightness levels as a ring flash. Clear: it is not a flash with TTL measurement, one needs a series of test shots with the flash. As Ringleuchte overall quite convincing, beautiful uniform illumination at close range, and the issue here in flash as the light output up to max. 1.5m, which is also in the description. It replaces a system flash or video light strong, but is designed for use at close range a handy and compelling option. Less suitable for the portrait area, as I do with high ISO speeds or studio lights clearly better pictures. But for flowers, frogs or other small objects at close range a good option due to the substantial shadow of freedom. Good workmanship, in addition 3 more color assorted lenses, this adapter rings of 49mm - 77mm lens mount - as you do when you buy certainly nothing wrong.