As a volunteer for a number of emergency services I have found the strobe mode to be useful. I carry my Huntlight Cree during the daylight hours for that reason. It makes a terrific emergency strobe at accident scenes when you arrive before any of the paid emergency services and is otherwise useful to get someone's attention over a considerable distance. The interface to get to the strobe mode could be thought out better, but the feature itself has merit for some of us.
I could see it as being an unnecessary annoyance to many casual flashlight users though.
Not to disagree, but I have worked as a career medic and a volunteer technical rescue dude, and I am CERTAIN there has never been a need for me to have strobe capability on a handheld personal light during an emergency scene. If I needed to 'flash' to catch someone's attention, on/off will suffice. Edited to add : NOw in night environs while performing swift watyer rescues - yes. I wear an atcivated strobe, but it is dedicated as a strobe only, and for that purpose-not a hnadheld light.
Now, as an LEO, the flash mode can be quite distracting to a perp that you strobe out, but a really bright light would help as well. In addition, a constant high level light source with a blue tint is actually more irritating to the human cornea, retina, and rods than a white light that does not maintain its constant duration. So constant bright light is better to subdue a person into compliance than a flashing light. Plus, the flashing is disorienting to the LEO. During tac practice, we developed a nausea for using the flashing mode. Not good when your team hates to turn on their lights. And lastly, the confusion over placing a tailcap in one of several different positions to useit or actually change it, is a fine motor skill that most officers do not have in a mission. KISS>
I personally, from a field usage perspective, think the flashing strobe mode is just a gimic. DO I own one ofthose type lights? yeah. DO I use it for anything other than grins and giggles? Do I trust it with my life? No. Just my opinion.