sending a light through a lens or having it surrounded by a reflector is a recipe for noise. Huge amounts of noise. I've tried it. I think these techniques would be great if we were working in Filmic color space and had a wider dynamic range but until that happens I stay away from that. I'm hearing rumors of an updated Cycles X or such for P13 so I'm holding out. I do have something similar in my store. A light set that parents to the camera like a photo flash.

W10, Ryzen 5 1600x, 16Gb,RTX2060Super+GTX980, PP11, 11.3.740