This headlight has a light output of up to 11 lumens, so you can be seen at a distance of 10 meters. You never have to worry about an empty battery, because the lamp has an indicator light when it needs to be charged.
Specifications:
Color: black
Material: aluminum
Type of lighting: led
Power supply: rechargeable
Features: standard, high, strobe and flashing
Tube diameter holder: 22 - 31.8 mm
Integrated Lithium Polymer battery (3.7V - 280 mAh)
Tool-free assembly