The Aputure Halo is a ring light flash that uses LED flash technology. It is compatible to work with a DSLR camera and provides a continuous stable light for high-quality picture results. The Aputure camera flash is specially designed for macro photography and features six modes, allowing a photographer to choose the best mode possible for the picture being taken at the time. Other features for the Aputure camera flash include a brightness adjustment wheel, three stops of brightness adjustment, left and right flash capability, and the option to choose between continuous light and just flash. During flash mode, the Aputure Halo is twice as bright and it uses 60 pcs LED bulbs. The unique lamp mount allows the ring light flash to easily accommodate both hot-shoe and lenses. Eight lens adapters are included which are 49 mm, 52 mm, 55 mm, 58 mm, 62 mm, 67 mm, 72 mm, and 77 mm. The Aputure camera flash can be powered by using four AA batteries.