Review on Copper GT Nano Flashlight: Powerful 450 Lumens EDC Keychain Torch With 300M Beam Distance, IPX-8 Waterproof, And Compact Design For Bright Mini Light And Key Ring Convenience by Michael Ward

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.