This Profoto 20 Degree Honeycomb Grid for Zoom Reflector 2 provides a 20 degree light beam when mounted on a Profoto Zoom Reflector. This grid attaches directly to the Zoom Reflector 2. Note: When used with an older Profoto Zoom Reflector (from the 1990s), this grid requires a barndoor with grid holder, or a grid and filter holder kit. Grids are essential accessories for any lighting system. These devices modify the shape and intensity of the light emitted by your flash heads. Using a grid will reduce the circle of light when attached to the front of your light source. The size of the light circle will be determined by the honeycomb density, its thickness and the distance from the subject. The lower the degree number, the smaller the light circle will be.