USB Rechargeable Li-ion battery Chip-On-Board LED Integrated tool free seatpost fitting Micro USB cable and rubber strap included
Features:

• High Constant: 2hrs.
• Medium Constant: 4hrs.
• Low Constant: 8hrs.
• Eco Constant: 15hr.
• Slow Flash Low Beam: 45hrs.
• Slow Flash Med Beam: 10hr.
• Slow Flash High Beam: 6hr.
• Quick Flash Med Beam: 23hr