The interfit i phone grip lite with extension arm kit is designed to work with all iphone models from 3 through to 5 the metal velvet material lined bracket attaches to the phone via small thumb screws holding the phone securely in a plastic insert the 40 lamp led light provides 100luxm and will run for approximately one hour continuously from six aaa batteries not included the light also includes a bounce card enabling you to bounce and soften the light for portraits and close up work th