I took this flashlight into the crawlspace from Hell for a job that had me in a nasty wet dusty muddy environment for six long days.  It produced great light while taking a beating.  About three or four hours of constant light on a single battery charge.  It's ability to stand up and point its head as needed was invaluable as it freed up my hands.  I was so happy that I got this just before taking on this job.  Just luck on my part.  No plan. Anyone who wants to be prepaired for the dark could do a lot worse.