This LED Macro Ring Light, a well-designed device for close shots, can constantly emit light and provide permanent lighting for subjects. With the LED lamp mode controller, you can adjust the three modes: all light, half left light, and half right light; With the power mode controller, you can choose two different power input modes to offers you continuous light: 2 AA batteries that is convenient for outdoor shoot or AC adapter input. In addition, it includes 6 different thread adapter rings (49mm/52mm/55mm/58mm/62mm /67mm) to fit wide range of lens models on the market.