• Made of PC engineering plastic, durable to use

• 4 working modes for your option, comprehensive night cycling protection

• 200mAh rechargeable battery, long time use 

• Waterproof design, safer in water fog when riding in the rain

• Suitable for camping, climbing, hiking etc.

• Easy to install, a great partner for cycling enthusiasts
  

Specification:

• Brand: CTSmart 

• Model number: BF04 

• Material: PC

• Color type: red 

• Bead quantity: 5

• Placement: saddle tube 

• Applicable tube diameter: 2.3-3.5cm
  

• Charging time: 2hrs
  

• Working time: full constant-4hrs; strobe light-8hrs; flash light-10hrs; strobe light&flash light-6hrs

• Suitable for: cross-country cycling, mountain bicycle, road bike, touring bicycle 
  

• Power Supply: USB