Nitecore NU43 1400 Lumens World's Lightest 18650 Rechargeable Headlamp 4500 mAh Rechargeable Battery The optical system has been

The optical system has been optimized

Back exterior: Oversized carry handle

Note: Only colors Black

able to insert quickly from both the head or tail

Nitecore NU43 1400 Lumens World's Lightest 18650 Rechargeable Headlamp 4500 mAh Rechargeable Battery The optical system has beenNote: This item comes with the official One Year Nitecore warranty. Features High performance lightweight 18650 rechargeable headlamp Max output of 1,400 lumens Red light illumination designed for protecting the night vision Utilizes a unibody optical lens system with various facets for reflecting a uniform and soft light Built in 3,400mAh Li ion battery Built in intelligent Li ion battery charging circuit with a USB C charging port (5V=2A) Designed