• The Bike Seat Tail Light has a combination of ABS and PC, which is durable and stable
• Mode: low bright - 20 lumens, standard bright - 50 lumens, high bright - 100 lumens, low bright flash, strong bright flash, fast flash
• Intelligent speed sensing: 3s high light when sensing the brake (100LM)
• Intelligent vibration sensing: automatically turn off after 3 minutes of standstill, will automatically light up after feeling the vibration
• Waterproof, adopting water-resistance design, anti-rainstorm, but avoid cycling all the time on a rainy day

Specifications:

• Size: 76 x 25 x 24mm
• Weight: about 72g
• Charging: USB charging
• Light beads: COB LED 
• Material: ABS+PC
• Charging time: 2 hours
• Product weight: 20g  
• Battery: 3.7V 500mAh lithium battery               
• Use time: 5 hours
• Luminous color: red light