The Aputure MC Pro Bubble Diffuser is designed for the MC Pro mini LED light (available separately). It attaches directly to the front of the panel and helps you create a wider and softer spread of light with your panel. The included mounting bracket is made of aluminum with a black hard-anodized coating for durability. The bracket secures to your light via a 1/4"-20 mounting screw and provides one 3/8"-16 and two 1/4"-20 mounting sockets, creating a variety of mounting options.