Mcoplus MP-MRF18 Brightness LED Macro Ring Flash Light Round Speedlite with 7 Adapters(52/55/58/62/67/72/77mm) Ringlight for Canon Nikon Pentax Olympus DSLR Camera High Brightness LED Spotlight Design,Provide adequate brightness for macro shooting. Attached are equipped with 52mm, 55mm, 58mm,62mm, 67mm, 72mm 77mm, seven different adapter ring, so you can use it with almost any type of lens Four working mode: Light mode,Flash mode,L mode(Left half of the annular flash),R mode(right half of the annular flash) Main FunctionsManual/ Lamp A flashing/ Lamp B flashing/ All flash / Long brightness mode LED lamp: 18 high-power LED lamps,Power: 4*AA batteries