product information:
Product configuration
LED: 2*CREE XP-G2 LED, lifespan is 50000 hours
Battery: Built-in 5200mAh/3.7V lithium ion rechargeable battery
Size (front light): 100mm (length)*48mm (width)*27mm (height)
Weight (front light): 202g
Installation size: applicable horizontal handle pipe diameter is 031.8mm, e 35mm

Packing list：
1) Bicycle front light
2) Car clip
3) Wired controller
4) Silicone gasket*2
5) Fix the rubber ring
6) USB charging cable
7) Product manual
8) Product warranty card