I did not expect 90% humidity!
But, the proof is in the pudding.
I have been shining this every night and it always has quite the visible beam. Not once has the beam been weak by my standards. I would say the beam is about comparable to a 30mW green in contrast to the sky.
I will admit, that beam looked every bit as bright while I was holding that camera as it did in the video.
It burns like crazy, but I'm not a big fan of burning vids as output evidence. It doesn't really indicate a whole lot. The lens can be focused, unfocused, set at the wrong distance to burn, etc. The LPM will tell all. It punches through a black CD case in about 10 seconds on infinite focus from about a foot away.