LED Universal Macro Ring Light w/ 48 Bulbs for Canon, Nikon, Sony, Olympus, Samsung, Panasonic, Pentax with Six Adapter Rings + 6pc Memory Card Case + Starter Kit Continuous Shadowless Light with 48 LED Bulbs Power supplied from 2AA batteries (not included) or through the included AC adapter Adjustable between full and semi-light (Full ring, left only, and right only) Six Adapter rings - 49mm, 52mm, 55mm, 58mm, 62mm, 67mm - included to fit a wide range of lenses