WHEEL UP USB Rechargeable LED Bicycle Headlights Mountain Bike Front Lights, Style:450 lumens

1. Material: aluminum alloy
2. Power source: USB charging
3. Built-in battery: 4000mAh lithium battery
4. Battery life: 5-10 hours
5. Style: 450 lumens, 900 lumens
6. Gear position: long light / medium light / flashing / fast flashing
7. Size: about 10.6x4.3x2.7cm
8. Weight: about 160g
9. Features: rotatable bracket, integrated charging and discharging, aluminum alloy shell, waterproof