Strike bezel is completely pointless, apart from knowing if you’re light is on when it’s head down on a flat surface
Well, I would argue that if you’re holding the torch in your fist, and someone lashes out at you, bringing your hand round and catching them across the knuckles is likely to prove distracting in itself: I was putting something in a shopping trolley a while back, and caught one of my fingers between the knuckles on the top edge of the trolley.
Christ did that ever hurt! I actually went a bit cold and shivery for a moment, and it was painful to touch for several weeks, and that was on a piece of wire about 5mm thick; a strike crown is quite thin, and would inflict a really painful bruise.
Thing is, it’s not a sophisticated way of defense, just a form of deterrent that’s better than just batting at their hands and hoping they won’t hurt you too much.
The concept is based on a Buddhist defensive weapon, just aim for nerve points; a biro would work, too.
Hurt your attacker in a way they’re not expecting, the distraction could make them back off enough to allow you to leg it.
No bully expects to be hurt, they like to dish it out, not get it back.