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https://en.wikipedia.org/wiki/Headlamp

https://en.wikipedia.org/wiki/Headlamp_(outdoor)

Amazon.com : Ultra-Bright LED Headlamp Flashlight Plus …

Foxelli USB Rechargeable Headlamp Flashlight – amazon.com

Fenix Flashlight, Headlamp, Fenix Flashlights – BrightGuy, Inc

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