+1.

Obligatory reference to epilepsy: Flashing lights can trigger seizures in some people. I'm one of those people. Flashies don't need to be super-powerful to be effective. I've lost count of the number of times I've had to completely shield my eyes from some fool running flashies at an intensity that could rival the sun's. What's the point? A medium intensity flashie will do the job. Keep your super-powerful beam for the steady light, something you can actually see by!

Max