Features:
1.Button long press about 2 seconds or so, the lamp is turned on.
2.Short press switch for mode change
3.Button long press about 2 seconds or so, lights off
4.USB charging mode,when the energy is full it will automatic power off, to maximize extend the life of the bike
5.Four lighting mode, power button control dimming sequence
6.Super waterproof, let you regardless of the weather
7.High brightness energy-saving LED lamp, less power consumption, longer life
Description:
Weight: 20g
Color: Blue Red White
Dimension: 7.5*3*2cm
Material: Plastic ABS/PC
Battery: Lithium battery
Function: USB charging Waterproof