LOL aspheric lenses arent manufactured solely for flashlights. There are other purposes, one being Automotive projector headlights. Though at that scale, the largest lense on projector headlights is 3in and that 99mm is about 3.8in.
don’t bother… i already bought couple of those lens and tried it for few of my flashlight… non of them work like a zoomie
fell free to buy mine if you still curious