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https://en.wikipedia.org/wiki/Headlamp
https://en.wikipedia.org/wiki/Headlamp_(outdoor)
https://en.wikipedia.org/wiki/Headlamp_washer
Fenix Flashlight, Headlamp, Fenix Flashlights – BrightGuy, Inc
LED Bicycle Headlight and LED Headlamp | LED Bike Lights …
Streamlight Headlamp Series from SWPS.com
