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

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

Streamlight Trident LED Headlamp Flashlight – 80 Lumens …

Life Gear 80 Lumen LED Headlamp Flashlight Batteries at …

Amazon.com: Headlamp Flashlight USB Rechargeable , BYB …

Amazon.com: headlamp flashlights