LUMINTOP GT Nano Keychain Flashlight 450 Lumens Mini Flashlight 300 Meters Beam Distance Single 10180 Li-ion Battery (Included) (Black)

This pocket light is perfect and bright. It’s light and the clip is actually sturdy. I can only recommend it the battery seems to have good life as well.

So I'm in the Department of Corrections in Cali. I purchased this light on a dumb advertisement video. Let me say I love this Nano light! I work a control booth and I flash inmates in the dayroom when I need their attention, and this light does the job!! Although its a small battery I charge it about 1x a week and I use it almost everyday(not in constant use). It is sleek, small, looks great and you dont even notice it in your pocket! I recommend it 100%

If you’re a flashaholic like me, eventually you will add this super-tiny light to your collection. And not for just its novelty, but because it emits a truly useful amount of light. Here’s a brief technical overview of this powerful little Every Day Carry light. Using the light: from OFF double clicking will take the light to TURBO, which is surprisingly bright. The light blinks 3 times at 12 seconds before reducing to FULL power, presumably on a timer. It then steps down again at 4 minutes, probably by thermoregulation because by then it has warmed up. It never becomes too hot to hold comfortably, though. The light continues to step itself down to moonlight brightness as the cell drains. Clicking three times will report the cell voltage using blinks. I don’t know if the LED turns off automatically, because I ended the test at 2.8 volts to avoid damaging the cell. Charging: starting from when the light reports a 2.8 volt state of charge, it takes about 2 hours to charge to a full 4.20 volts. The screw-on charge controller regulates the current from 80 milliamps down to 10 mA, which is at maximum a 1C charge ramping down to almost a C/10, and should provide a reasonably long lifetime for this tiny 10180 cell. It does not get hot during charging. My equipment reports that it required 138 mAh to charge the cell to its stated 80 mAh capacity. That’s a 58% efficiency, not great technically, but amazing nonetheless for such a miniature piece of kit. The Narsil User Interface will be familiar to most users of modern lights. It’s a common UI because it’s so intuitive, and easy to mod if you wish. The side mounted electronic switch is dimly lighted in red, but you can‘t see it from across the room like other bigger lights. All in all, a very useful keychain flashlight. At the lowest setting, moonlight, it’s easily bright enough to find your door keyhole, and at full brightness it will light up a whole room when stood on its tail. Get yourself one. Edit - I carry mine on a gigantic keychain, and it has accidentally turned on, draining itself. Fortunately, you can lock it off with 4 quick clicks.

This light has amazing output for its size. My first thought was, how practical is this TINY thing really? I have carried it around in my pocket for a few days and I have been pleasantly surprised by its usefulness. Let me first say, If you are looking for a camping companion, this is not the light for you. Its size creates some unique carry options while limiting its actual effectiveness. I have used the light for random tasks like taking the dog out side for relief, finding my keys, or keyhole on door. This light is compact enough to carry on a keychain ,or in my pocket with comfort. The usb charging is convenient, and pretty fast. I can charge the light from my car charger if needed. The packaging and accessories are top notch, as you would expect from lumintop. A lanyard, carbiner and usb charger is included. The light on the button is not visible, I read in other reviews it is programmable. My unit did not come with directions, so that is not a possibility for me. I also read in other reviews that there are other program options? In my opinion, this is a great light and is designed to bridge the gap between regular low lit areas to short time light needs. The battery size obviously limits the throw and usable light time. I dont agree with the stated specs, and feel they are exaggerated. This light will not reach 300m, my estimate is more like 100m. With that said, thats 300ft, and what do you need to see over 300feet away? Actual usable run time on regular setting is about 15mins. Moonlight may reach 11hrs in a lab, that was not my experience. In my opinion, this is a great task light for short time needs and small enough to easily carry on a keyring.

I've got several -dozen- LED lights. Most are the best in their category. Some are more a useful-toy type deal. There are better keychain lights (this one has a large bezel), but NOTHING this size will 'throw' as far. I can light up a house 500 feet away, with a -useful- amount of light. Now-be aware-that amount of light only lasts for 2 minutes until the battery is depleted. But the operating system for the light has smooth ramping from very low to maximum. At low ramp, you'll get much more than 10 hours of use (I stopped the test at that time). That level is perfect for in-house, or out to 30 feet. The light blinks to tell you the battery voltage (4.0v to 2.5v is the range you want to keep it at). It will blink a lot to tell you it's time to recharge. You can change the 'firefly' setting to one of three brightnesses for working up close (map reading) in total darkness, without destroying your night vision. I'm estimating 50 hours of life at the lowest firefly lumen setting, if you get lost in a cave, or need a dim light all night long in baby's room. The build and design quality is very high, with great anodizing. You can replace the LiIon 10180 battery when it wears out in 5-10 years (you do need to recharge it when you deplete it through use, the battery is not a one-time-use battery). This light is very popular on all the flashlight forums for a reason!

I'm very impressed with this light. The battery charging is a strange solution, but it works. The need to unscrew the base at all times that you are not using the light is important. That prevents battery drain. The battery life on high is short, but the battery is very small. Fits on a keyring or in any small pocket. Great for a backup light or for emergencies, great for uses where size and weight is very important. A little bit more expensive than I would have expected, but not unreasonable. May not be suitable as a gift for someone that needs a larger light with longer battery life.

The amount of throw this little light puts out for its size at its brightest setting really did surprise me. Even after watching the videos on it until you see it, it's still like "Wow". I bought the combo kit with this and The Frog light. I also bought the extension tube for both and the bigger rechargeable batteries in a 4 pack. I VERY HIGHLY recommend you do that, as the tiny battery that comes in the lights just don't last long and with their size is understandable. Even with the extension tube and bigger battery, the lights are still very pocketable. The y both come with a charger cap thing that regulates the charge. It's unique and I think a little bit of a pain, but really it's not.... just remember where you keep them. They are light specific so you can't use one on the other light. I find that I prefer the Frog for inside needs and definitely prefer the GT Nano when I'm outside for that much longer throw. The pictures of the trees behind my house, that distance from where I stood to the trees was about 150 yards. The picture of the trees down the street was 3-4 telephone pole spaces down. You can see the difference with the GT Nano off and on. The distance to the next door house was about 50-60 feet. Good light for a bright pocket light for sure. It will toggle down to regulate the heat but all lights now will do that. So keep the high setting in mind that it is short (it cools quickly and you can turn it on and get repeated bright throws) and you'll enjoy it.

Update 5/23/23: Button popped out again. Lumintop support is thus far nonresponsive via their website or email ... this is disappointing. While this is a really fun light, it really takes the shine off the product if you can't turn it on. Update 7/15: After much wrangling I got my flashlight repaired. It had to be shipped to china for repairs at my cost. Hopefully it stays fixed. Extremely bright and throws very far. Battery life with the original battery is mediocre - get the 10440 tube. The button popped out on mine after a week, but I was able to use some silicone RTV to reattach it and it seems to be holding. Will update if it fails. it seems like amazon stock may have some issues - first order I received an empty product box, and second order of a copper version received the black version. YMMV, however amazon replaced the missing light.

Good throw, good brightness. Easy to use

Excellent torch

What an awesome little light. Is it ever bright. I highly recommend it for short term needs. It does get pretty hot in the higher settings, but you don't really have to use the highest setting.

It's tiny, and brighter than my 3 D maglight (led upgrade)! Love this torch. It's ace!

Nice and small and strong light