My long-awaited P-7 finally arrived, though I've yet to put it to use (been too light in the morning, and good daylight on the ride home).
It will get plenty of time in the morning dark once we spring forward next weekend. In the meantime, I engineered an easy helmet mount that has proven to work well.
I wanted a mount because I have been frustrated with the zip-tie method, which I use for two Fenix lights also on the helmet. Zip-ties did a great job of securing the lights, but they made it hard to get the batteries out for a recharge.
Since I would be changing the P-7's battery perhaps once a day, and possibly mid-ride, I didn't want that hassle. So I tried to find a way to mount the light up off the helmet, so I could easily unscrew the end cap and swap out the 18650.
With that in mind, I dug up an old handlebar mount that came with some kind of blinkie — Planet Bike, perhaps? It turns out that the part of the mount designed to clamp around the handlebar is a perfect fit for clamping around my Aurora light.
Excellent. Now I just needed to secure it to my helmet.
I used my Dremel tool to grind off the little plastic wings (which formed a clip to hold the blinkie in place) to make it flat and smooth. Could have done the same with a sharp knife.
Then I lightly roughed up the top of the helmet with some steel wool and used epoxy to attach the mount.
P-7 on helmet.jpg
The good thing about this P-7 mount? It is adjustable. I can get the vertical angle of the beam just like I want it, and — here's the cool part — make adjustments on the fly. Or, I can tighten the nut on the mount and lock the angle in place.