Originally Posted by
Kedosto
I would think that if one ever finds themselves in a circumstance where the intensity of a headlight is something to be counted upon as a defensive measure, the situation is all but lost. The best defense is a proactive approach involving awareness, recognition, and avoidance. By the time any threat is within the effective range of a bright helmet light, they're already within striking distance.
-Kedosto
I don't know. A bright flashing light from 10 feet away makes it hard to tell if you are a 5'5" 125lb easy target or a 6'2" 220lb MMA fighter
Some attackers won't care (usually the 'high on drugs' kind) but most muggers are looking for an easy target, not a gamble.
Strobe lights shouldn't be your big plan for defense. That's kinda dumb. But if it's what you've got you can use one to your advantage.
If you're on a bike and the attacker is on foot, gaining 1 to 2 seconds while the attacker pauses it enough to get you 20 feet away from that spot, well out of arms reach. And you'll keep getting further away fast.