Mode: 5 modes

Lumen: About 20 lumen

Charge: USB Rechargeable

Battery: Rechargeable lithium battery

Waterproof: Daily waterproof, Can't be soaked

Size: About 3.1*2*4cm

Weight: About 22g

Function: Bike bicycle rear light taillight, Helmet Taillight,

Package

1.Cycling Helmet Taillight*1     

2.Rubber Strap*1       

3.Fixed apron*1

4.Long Strip hook*2     

5.Short Strip hook*4       

6. USB Charging Cable*1

Helmet Taillight Install Steps