Expand Your Experience. The Prolycht Fresnel Kit for Orion 675 FS LED provides additional light control while using the Prolycht Orion 675 FS LED. The 10-inch fresnel lens mounts on the front of your light using the Bowens S mount, and it has an adjustable flood/spot adjustment spreading your lights beam from 15 to 50°, providing a classic lensed light look to your Orion 675 FS’s output. The eight leaf barndoors, provide additional light control, helping to prevent unwanted spill in addition to allowing you to shape the light’s output.