Nitecore NU43 Rechargeable Headlamp - The Worlds Lightest 18650 Battery Headlamp

Nitecore NU43 https://flashlightgo.com/products/nitecore-nu43-1400-lumen-super-light-rechargeable-headlamp
https://flashlightgo.com/
Enter "10NU43" on the checkout page can get 10% discount.

Comes With
Manual and Warranty info
USB-C charging cable
Built-in 3,400mAh 18650 Li-ion Battery
Key Features
Ultra-lightweight for a headlamp with an 18650 battery
Has two LEDs (spot and flood) that work together to create a clearer, more integrated light
Ultra-low standby power consumption
Rotating cover for the USB-C charging port
Elasticized, perforated headband with reflective accents
equipped with a proximity sensor which automatically decreases the output when an obstacle is found in front of the lens. This prevents overheating
 
Physical Specs
Materials Polycarbonate and aluminum
Dimensions 3.14" x 1.81" x 1.73” / 79.8mm x 46.1mm x 43.9mm
Weight 4.09 oz / 116 g
Water resistance IP68
Drop resistance 2 meters

Performance Specs
Turbo 1400 lm (not listed) 130 meters / 3800 cd
High 600 lm 10 hours 77 meters
Mid 300 lm 15 hours 53 meters
Low 100lm 29 hours 30 meters
Ultralow 8lm 165 hours 8 meters
Strobe 1400 lm (not listed)
SOS 1400 lm (not listed)
Red Light
On/Flash 10 lm 66/90 hours 5 meters
A full charge takes approximately 2 hours

 
Operation
Long press the Power button to turn the white light on.
With the light on, short press the power button to cycle between low, medium, and high
Long press the Power button to turn the light off
With light off, double press the Power button to access ultra-low
With the light on, double press the Power button to access turbo
With the light off, long press the Mode button to access the red light
With the light on, short press the Mode button to access the red light
With the red light on, short press the Power button to toggle between constant on or beacon
While light is off, short press the Mode button to find battery status (4 blue LEDs)
Double press the Mode button while the light is off to activate SOS or Beacon. Toggle between by pressing the Power button
To activate the electronic lockout long press both buttons while light is off (will flash 3 times). To de-activate the lockout, long press both buttons until light turns on
Can also rotate the light up to block the power button