This type of light (one hundred leds) is great for close-up shots, macro, portrait ... ultra easy attachment end of "objective (+ a dozen adapter rings from 49 mm to 77 mm ). Bravo for the concept. Runs on 4 AA batteries (found everywhere) to place in the box located in the flash shoe BUT CAUTION => tested on Canon / Nikon = impeccable on ...... SONY boxes impossible to fix the battery casing for entirely different flash shoe of other brands ... delivery Fast amazon.