Bests & Worsts Reviews from Amazon

I'ts a really nice light, if you get a true Streamlight. 3 settings: Hi, strobe, and low. Hi is bright enough to easily shine across my backyard about 100 feet long. Small enough so it just barely sticks out from my closed fist when held, just enough to use as a strike weapon if needed. Great for EDC. The clip is the key - lets you attach to your cap visor. The problem: I've bought 5 of these now. Two of them: randomly they would not turn on, when they did work, would not shine brightly, and would make a very soft but high pitched noise. These were counterfeit, but by the time I had used them enough to figure this out, many months had passed, could not return. My last purchase 8/28/18 luckily a real streamlight arrived and works great - below is the list of things you have to check right away, and if these are present, then send it back - see attached photos: Signs of counterfeit Streamlight: 1. ten-tap programming does not work --> counterfeit 2. unscrew the end cap: if O-ring is BLACK (instead of orange) ---> counterfeit 3. take the end cap off, remove battery - if there is NO SPRING in the front end of the flashlight, where it should contact the battery, --->counterfeit 4. end cap with grid texture pattern instead of the "SL" streamlight logo ---> counterfeit See attached photos.