Mounting Frame for use with PL7R Reflector PL7MF Mounting Frame... Designed for use with the PL7R 7-1/2" reflector (included with each PowerLight), this unique frame fastens easily and securely to the reflector, allowing air to circulate around and cool the flashtube while preventing light from escaping. Accepts diffusers, grids, gel frames, snoots and barndoors with simple, spring-action clamps. Entire assembly rotates 360 degrees on lamp head.