У вашего броузера проблема в совместимости с HTML5
beeing inspired from an iso.500px article https://iso.500px.com/diy-lighting-ring-tutorial/
about a diy ring light I started to build one for myself. Instead of standard light bulbs I used LED spots and a diffusor ring to smoothen the bright light. See how I build it and the first test picture taken with it …love the look
sorry, the footage from milling the rings are lost …check my window to the moon how it works