Only a problem if used in a moving vehicle. And I suppose a bicycle too, given how the police use mountain bikes in some cities where there’s a lot of vehicle congestion. :wink:

Ken had said he expects no increase in diameter. There does seem to be enough room inside, particularly if they find a way to reduce the circuit board a little further. I agree, a little length would be preferable to width. It would also be good if they came up with 2 clips, the standard and then another for brim use. The one currently included ends up bending too much if you brim mount it, and then it won’t clip snugly to a pocket.

Ah, bummer. Well, thanks a lot for checking! My hope is that the optic would be easily obtainable for not too crazy a price. I wonder if there’s enough depth to run GITD tape along the inside of the LED chamber.

Ah, didn’t know ZeroAir inspired you. Yes, he has some pretty nicely detailed reviews and the one on the E300S with disassembly was great. I figured a thicker wire is simply better for voltage pass-through. I wouldn’t bother to emitter swap, as the 219C option should be sufficient.