video

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

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

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

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

Lighting Finder | Energizer

Zbattery Battery Supply | Bulk AA, AAA, 9V batteries | Maglite