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With the included pocket clip and strap, the H1R Nova can be used as a standard pocket or making this one of the most practical and useful in the illumination industry.

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

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Foxelli USB Rechargeable Headlamp Flashlight – amazon.com

Rechargeable LED Headlamp, OUTERDO 6000 Lumens Head …