The BC40 puts out the same amount of light on both modes (to my eyes) whether it's using four CR123s or two 18650s.
My light (from BatteryJunction) didn't come with batteries or a holster, but they
weren't listed as included accessories. I'm not sure why some distributors include them and some don't. The cigar grip / anti-roll ring spins, so I put an O-ring on first, then the ring, then the tailcap. The ring no longer spins.
Anyone who can comment on how the BC40 does with heat on long runs?
I just got the light today, and have used it for duty. Long-term, I'm hoping it works as well as it did today...
I used it on and off, both modes, for around five hours today. There were no short bursts of light to save battery power; my shortest usage was about fifteen minutes on low and perhaps six to eight minutes on high. Without actually using the light, I left it on the desk (on high) for 35 minutes while I walked around. When I got back, the head was pretty warm, but not so hot that I couldn't hold it (by the head for a few minutes). Today, I was using four Titanium Innovations CR123s. Thumbs up for this light.
Re: Versus the MG P-Rocket and Solarforce Skyline I
P-Rocket 450 Lumens OP Reflector The BC40 is definitely brighter than