Specification:
100% brand new with high quality
Color: Black
Size: Approx.75 x 2.4mm
Power Supply: Built-in Polymer Lithium Battery 3.7V 1200mAh
6 Modes: High Light-Middle Light-Low Light-Burst Flash-Slow Flash-Constant
Mounting Placement: Handlebar

Features:
Light sensor, ambient light darker, stronger light lighting.
Slide design, quick release 
Safety, no glare, accident prevention.
USB charging, easy to use.
Easy to install, anti-fall protection.
Power save, mode can be used continuously for 2 hours and power saving mode Release 6 hours.
Uses for night riding, mountain bike, fixed gear bike and so on.

Package Included:
1 x Bike Front Light
1 x Cable
1 x Bike Mount
1 x O-ring

Note:
Please allow minor error due to manual measurement.
The colors may be a little difference for the different monitor display.