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  • How to Make a Laser Flashlight - Laser Flashlight Hack!

    This thing is insane. I've used a single green laser pointer as a flashlight for indoor settings--the light reflects off the surrounding walls enough to really light things up--but I'm astounded to see this application for outdoor use. Just be real careful not to accidentally hit an aircraft low on the horizon.How long does the flashlight run on standard D batteries?

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