Enhance the lighting on your selfies and social media pictures, and add a professional touch to your pictures. This phone light clips on to your phone and provides extra light from just the right position. It fits on to all smart phones. 8.3cm ( dia ) ABS white LED light with 3 levels of brightness. can also be used as an emergency table lamp, emergency flashlight, night light or reading light. lithium battery: 80mAh – 3.7V / 0.2A. powered by USB charging. input 5V / 1A. working time: around 2.5 – 4 hours after each full charge