I have a Streamlight M3 with a xenon bulb and I've used it for duty for the last 7 or 8 years. It has gotten dull and I wanted a brighter light. I was looking for an LED upgrade bulb for the M3 when I ran across a different light for only $40 bucks. It is called a NEBO 5569 PROTEC. It boasts about being 190 lumens and it has a strobe function as well (been wanting a strobing light for a while). Its gotta be better than my old dull M3, we"ll see< even if its not suitable for duty and I stick with my good ole M3, I'll throw it on to something else. I'm a flashlight freak and my wife agrees. Been that way after getting seriously taxed in a low light close quaters crisis resolution course

you cant have enough lights around....batteries fail....halls are tighter in dark....and there are alot of things that go bump in the dark that are worse than the boogie man

I'll post up a review when it gets here.