Streamlight MicroStream Ultra-compact Aluminum body with AAA alkaline battery, 3.5 Inch - 1.04 oz - 45 Lumens - 66318, Black

First Impression: Wow, that is really small.....and beautifully crafted! Pros: Solidly crafted, simple and elegant design. Uses only 1 AAA battery and fits the battery very tight. has a water seal O-ring. Has a momentary push switch on the back for quick bursts of light for signaling people or just making a quick check. you can also push the button all the way to click it into the on position. Extremely light and thin, about as thin as a pen. The rubber back button has a nice texture and sticks out quite a bit more than most flashlights which i like and is easy to feel for and finally the clip it comes with wont slip off your pocket or tear up your pants. The light itself outputs an extremely bright light for it size, great distance also! I like how it only has 1 feature...on/off and temporary-on with slight pressure...none of that flashing strobe, or hi/lo garbage. A simple use that is very effective. Cons: None really. But if I had to give my opinion, to click the push switch on you kind of have to use the tip of your finger because it gets kinda hard to press at the end of its push to lock it in the on position. The temporary on is a simple press of the thumb, but I cant lock it in the on position without using my thumbs-tip to press it in. Light output is not to be compared with some of those 1w LED flashlights or any 3xAAA or 1xAA battery flashlights. But think of the size and versatility of this tiny flashlight. I keep this on my person at all times. I would not toss this in a camping bag or toolbox. If you plan to have a bag, or are using this as part of a kit, Id recommend going with a bigger, more powerful light with a focusing ring. But to carry on you at all times, this is the best there is! For comparison, the light output is comparable if not brighter than the Energizer 1W LED flashlight that sells for the same price if not more and that uses 1xAAA and is heavy and switch broke after a year. I have bought 5 various top of the line LED mini flashlights and this one takes the cake over any of them! -Dash

My daily carry. Had one for over 15 years but lost it and needed to replace it. Very brightfor single AAA battery and it lasts a long time. 8 know there are brighter rechargeable versions but I prefer this one because batteries are easily available and many times I dont have to plug it in to recharge. I can just replace the battery and have a working light again. Best bang for the buck.

This thing has it all on Mag Lights and the like. Its so easy to use, provides great light, is lightweight, and can go with you anywhere. This is essentially the same review I left for

I’ve had a few of these things now. I just feel naked now without it. So small it just disappears in your pocket. It’s not the brightest light in the world, don’t expect to be spotlighting deer with it, but it’s perfect for finding the remote under the couch or working under the hood. Pro tip - if you wear a baseball hat you can clip it to the bill of your hat and it acts as a head lamp. Perfect addition to your EDC. Great stream light quality at a great price. Makes a great gift! If your on the fence about this thing do yourself a favor and click the buy now button. You won’t be disappointed.

Dont get fooled by the rated specs of only 28 lumens. Thanks to the small emitter and the relatively deep reflector, the Streamlight Microstream projects a beam as bright or brighter than other AAA lights rated at 70-80 lumens. It measured 750cd on my lux meter, and it runs for 3 hours while the other lights drop out of high mode after an hour. This also means the light has a tightly focused beam, which makes it ideal for picking out details, but its not the best choice for casual close up tasks like reading a book or a map in the dark. This light also handles like a bigger light. I use or have used other AAA lights from brands like Fenix, Foursevens, and Olight, and while those are good in their own right, they are ultra-compact twisty lights, best used for key chain duty. This light is slightly longer, has a forward (momentary) clicky switch, and a convenient bi-directional clip - all of which make this light better suited for people who rely on a light throughout the day in various jobs and tasks. The tint of the light is surprisingly good, about the same as my Fenix E05. That means its a creamy white color, which appears to my eyes as neither cool, nor warm, but relatively clean white (although technically the LED is still a cool white). Its true that the switch is harder to depress completely than my other lights, but not so hard that it bothers me. In certain applications where you need the switch to only function momentarily without clicking, thats actually a good thing. I tried putting a thin spacer between the rubber boot and the switch, and this makes the switch noticeably easier to click. Considering that the light offers these features and performance for under 20 dollars, I picked one up mainly out of curiosity, but it has since become used more often than my other compact lights. *** 2014 Update Bought another one, and its the newer 2014 version. This one has a larger 35 lumens emitter. The output is slightly higher, but the beam is not as tightly focused, and the hotspot is not as bright. I clocked it at about 320cd, which is roughly half the luminous intensity of the older model. Still a useful amount of light, but not as impressive at longer distances. However for general purpose use, I prefer the smoother beam of the new model, so overall I consider it an improvement.

Does what it should. Cannot go wrong with Streamlight.

No complaints whatsoever. Great battery life. I’ve dropped it a couple times and still works perfectly. Brightness won’t light up much past 10 feet outdoors but that’s expected of a light this size and price. Love the hat clip. It basically dual uses as a headlamp.

This little light exceeds expectations. I have never taken the time to write a review before, but am doing so now because the reviews that others have written helped me to find this excellent little piece of gear and I am grateful for that. There are many other small LED flashlights cheaper than this one but none that come close in performance. It produces a far brighter light than any other using the same battery power. It doesnt have a lot of fancy features that make it harder to use and that I dont want or need (or that break and render the light useless). It just switches on and off. Its so small you can tuck it into a shirt pocket and forget about it - until suddenly you need it unexpectedly and its there, bright and strong. It doesnt dim until you can no longer use it before the battery wears down completely. It does of course dim somewhat, but its still bright enough to use until the moment the battery goes dead. Its rugged too. I inadvertently ran it through the laundry last week. It soaked overnight with the load, then ran through the wash cycle in the morning. I discovered it only when I heard it clattering in the dryer after fifteen minutes. When I took it out, it still worked perfectly, and the case appears completely undamaged. When you figure in the cost savings in batteries and the extraordinary durability of this little rig, it is actually the most economical small light around by far. I have owned it for about a year. I also recently picked up the 66118 (2 x AAA) version of this light. It is marginally brighter and lasts about 2.5 longer before battery changes. I like that one too, but you cannot beat the little 66318 (single AAA) for sheer size and convenience. Im getting a second one now in case the manufacturer switches to a less good factory in the future. I have often seen a pattern in goods manufactured in China: that they are very good at the outset and then the quality declines later. While I have not seen this happen with any Streamlight product to date, Im not going to wait for it to happen.

This is a truly outstanding light, and at $16.00, it competes with other lights in the $30 - 60 range in terms of build quality, form factor, and beam quality. Im very impressed. First, this is the UPDATED version of the original MicroStream, so if youve read older, pre-2011 reviews (many are still circulating online), you may be surprised to learn that this version has resolved several known issues with the older model. The beam is brighter (28 lumens instead of 20), battery run time is longer (2.5 hours instead of 1.75 hours), the tail switch is much stiffer (nearly impossible to turn on by accident in your pocket), and, though I have no way to confirm it, the anodized coating seems to be more scratch resistant. Second, this light is very small. It is barely larger in diameter than an AAA battery, and the length is about the same as the width of my medium-sized hand (i.e., if you clutch it in your fist, you should be able to palm the entire light). The two-way pocket clip is reasonably stiff and very functional. It can be clipped onto your pocket for a more secure ride or onto the brim of a hat (or backpack strap, etc.) to hold the light for hands-free illumination. Ive also clipped it onto the edge of a stroller as a very effective headlight to illuminate the pathway when pushing a stroller at night. The weight is so light you will absolutely forget that youre carrying it. Its only negligibly heavier than the weight of the AAA battery itself. Basically, if you have room for a tube of chapstick in your pocket, you have room for this light. Third, the beam is very clean. It creates a nice, round, evenly illuminated circle of light with no hot spots or shadows anywhere in the center of the beam. The beam has a very effective reach (throw range) of about 15 feet. When you shine it at your feet, it casts a brightly lit circle about 18 in diameter. There is some spill at the edges of the beam, but not enough to illuminate the surrounding area, so its closer to a spotlight than a floodlight (as any light of this size should be). Its ideal for illuminating a pathway at night, reading in the dark (though perhaps too bright for extended reading), locating a keyhole in a door, or momentarily blinding a potential attacker to gain an edge in a self defense situation. Fourth, the light is certainly weatherproof and, theoretically, waterproof. I havent tested the latter claim, but there is an O-ring seal on the barrel threads where the light screws together so I suspect it would certainly survive a drop into a puddle or other casual contact with water. I wouldnt deliberately take it diving, of course, but its not a dive light so it hardly matters. In short, Im very impressed with this excellent, lightweight, perfect-for-casual-lighting-needs light. Ill probably buy several more and stow them in various places (kitchen cupboard, boat hatch, glovebox, office drawer, etc.) because theyre so affordable and useful, yet take up almost no room.

I recently purchased a Olight I3T EOS and wrote a review complaining that the duel light mode was a little finicky and because the lower the battery was the lower the light output was I sometimes had trouble with knowing if I was failing at getting the high mode or if my battery was low. Also the battery life on high mode was terrible. And my suggestion was just have one middle mode since low mode on the Olight at 5 lumens was nearly useless and high-mode was too much of a battery hog. Anyways, long story short Amazon advertised this shortly after and it delivers exactly what I asked for in my review. 45 lumens isnt enough to light up things when there is a decent amount of ambient light its plenty to see above a drop ceiling, in an attic, or at night. And for a single AAA battery it last long enough where I dont have to think about using it only when needed lest I run out of battery. Good stuff, would buy again.