1000 Lumens CREE XML U2 LED Bicycle Lamp, which is professional designed for Commuting, Riding, Hunting, Walking, Fishing, Mountaineering, or other outdoor sports, etc

• Light source: Latest Cree XM-L U2
• Luminous flux: 1,000lm
• LED Lifespan: 50,000 hours as the American Cree manufacturer rated
• Shell material: 6063A aluminum
• Surface treatment: harden anodized anti-abrasive finish
• Switch: tail click switch
• Modes: high-med-strobe, and OFF by press the button for 2s
• Battery pack: 4 pieces 18650 Li-ion battery pack with 7.4 to 8.4V 4,800mAh
• Battery lifespan: up to 500 times cycle maximum as the manufacturer rated
• Working time: 5.5~6 hours (approximately)
• Waterproof level: IPX-5
• Net Weight: 60g
• Working temperature: -20 to 80 degrees Celsius