The phot r 3x 103050deg honeycomb grid set is to be used with our 7 bowens mount reflector dish the grids narrow down the spread of light from your lighting fixture to provide a more dramatic effect it tunnels and the spread into a narrower beam the set includes 3 different degrees of light throw 10deg 30deg and 50deg which are all perfect for an accent or spot lighting the use of the grids will result in a small circle of light it will alter the shape and intensity of the li