The SLR Hut LED Macro Ring Light, specializing in up-close shooting, constantly emits light and provides stable lighting conditions for a given subject. An LED lamp mode controller provides two choices for power input mode: 2 AA batteries designed for outdoors, and AC adapter input. 6 thread adapter rings (49mm, 52mm, 55mm, 58mm, 62mm, and 67mm) fit a range of lens models in the market.