• Mounting Placement: Seat Post or Handle Bars

• Power Supply: USB

• Waterproof: IPX2 waterproof bicycle accessories

-USB charging

- Shell Material: Waterproof ABS

- Charging time: about 2 hours

- Working Time: 3-6 hours according to different using mode

- Easy to install, suitable for many sizes of handlebars or seat post

- 4 lighting modes style:   Strong light, Weak Light, Flashing, Warning lights 

How to use it?

Open: click 1 time (0.5 second)

Close:  4  lighting modes just press for 1 second.