Volunteer Firefighter and use this as my main personal light for vehicle accident scenes. Having the spot and flood beams coming from 2 separate LED's with their own switch buttons is a great design! The flood is very wide and great for normal scene work. 1 click of the button and it is on "high", 2nd click is "low", 3rd click is "off". The spot beam works the same way and has a tight beam with very good throw. Both beams can be used simultaneously in any combo of off/hi, hi/hi, hi/low, low/hi, low/low, etc.
After I had it on my helmet and stepped out to try it that evening I was wondering how to remember which button operates which LED. With my helmet on my right hand operated the righthand LED, which is the spot beam. I used my left hand to operate the lefthand LED, which is the flood...
hmmmmm,,,, so, for all the wrench turners out there... righty tighty, lefty loosey! When the headlamp is on your noggin, right button is spot beam (tighty) and left button is flood beam (loosey)!
It also has a very bright, yellow LED on the battery pack with a large button beside it. 1 click and the LED comes on "solid", 2nd click and the LED "blinks", 3rd click is off again.
I have it on a Cairns 1044 helmet. The band is quite tight (almost too tight) even with the straps extended completely. I don't think I would want to try to fit any door chocks or window punches up there using just this band. It would be to stretched and too narrow for that purpose I think.