The best alternatives to Arctic Laser are BULLET, Pyyros, and HUNT23. If these 3 options don't work for you, we've listed a few more alternatives below.
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The Pyyros flashlight comes with three settings and six hour battery life when on the high settings and it also features a USB power pack that can be used to charge your smartphone. It can also be used to charge other USB devices. Pyyros, your ultimate flashlight and modular multi-tool.